Experimental Marais

Recent stay at the hotel. The door buzzer for late entry does not work to get in and had to call the hotel. Good thing I had my phone. That was night one. After reporting the issue and told the issue was fixed the second night had me waiting for someone to let me in. I asked for a manager and was told none was available.. Don’t stay here. Horrible experience.

This hotel is a true gem in the heart of the marais! from the staff who treated us like family ( savvas, antony and all the girls at reception - in particlur Noemie) to the sales team led by Laura and Simon - i cannot speak highly enough of them. We had a deluxe room which was very spacious for Paris - and a great size bathroom ( slightly dark for my liking!) but stunning!! brekky was abundant and the position of this hotel caters for all travelers. Request a room nnot facing the street though as it can be slightly noisy late at night. All in all, i cant wait to get back :)

We went to have a drink at the outside terrace and my word the service was shocking. The staff are so busy admiring themselves (heaven knows why as they all seem to be The Costes cast offs!) that they forget they have customers who actually pay their salaries. Lets hope this place closes soon.

We spent one night at this well located hotel in Marais. I did very little research other than a quick google search as we were walking around Paris so was delighted that we had a very nice executive room that was spacious, comfortable and had nice amenities. The room was clean but I still always wipe down things. We probably weren’t there long enough to really appreciate the room or the property so the price felt a little steep but such is real estate in Paris.

A nice break. Perfection! A perfect location in the middle of the marsh. A warm atmosphere with a thousand charming details, books available, objects of yesteryear in deco in the corridors, platinum and vinyls in the room. Breakfast served at table with pastries to lose, fresh juice, chia pudding, pancakes and more. And what about the restaurant... delicious!! Congratulations for this beautiful address!

Very welcome. Cocktails are good. The setting is pretty

The hotel has just opened a new terrace, which may seem like a good idea. But the street noise is deafening. The waiters are slumped on the terrace and criticize customers among themselves in front of everyone and especially without coming to take your order. Since the hotel has changed owners the service has become horrible, uneducated people (we are in a 5 star), the roofing is in order as it seems natural for the waiters to be unbridled with laughter at spread throat and even sit at our table to chat. We are regulars of this place, but the service and quality of the dishes is in free fall. You have to get your act together especially given the price increases (+15€ on the bottle I usually take)...

I am currently staying at Experimental Marais in Paris, formerly known as The Sinner, and I feel compelled to share honest feedback about how dramatically the experience has changed since the rebranding. When it operated as The Sinner, the hotel had a strong identity. It paid attention to detail. It had character, atmosphere, and a sense of theatre. Today, while the price has increased, the quality of service and overall experience has noticeably declined. The concept that once made this hotel distinctive now feels diluted. It has become another expensive boutique hotel, but without the soul that once justified the rate. You pay more, yet receive less value. With the new branding , they took away the air fluffed extra duvet, added bulky room key, and made it more towards dad and mom are going to send a night at an expensive boutique hotel! Cleanliness & Maintenance Concerns There are several issues that should not exist at this price point: Mug rings were left on the bedside tables upon arrival. The bathroom tissue box was EMPTY. The house slippers were too small for a man's feet, and when i asked for a bigger size , they staff member told me thats the only size. but the following day when i asked about a bigger size, it was magically searched and found , then delivered. The coffee table was not properly cleaned. The rug did not appear freshly vacuumed. The bed linen had a strong detergent smell that was unpleasant rather than luxurious. In Room 205, the paint is peeling from the shower ceiling. These are basic maintenance matters that undermine the perception of a luxury property. When I arrived, the AC in my room was not functioning and could not be repaired until the following day. My only temporary option was to use Room 101, the accessible room for guests with disabilities. I was uncomfortable taking that room, as it should be available for someone who genuinely needs it. Meanwhile, my own room had a noticeable vanilla and tobacco odor, and during the afternoon there were also kitchen smells drifting into the room. Without working air circulation, these odors lingered and became more pronounced. I was advised to open the window, which is not something one expects to hear in a hotel that positions itself as luxury. Dyson Hair Dryer Experience There is now a standard hair dryer in the bathroom drawer. If you would like a Dyson hair dryer, you must sign a form acknowledging receipt, after which one unit is brought to the room. The staff member who delivered it did not speak English, which made communication difficult and diminished the service experience. More concerning, the accessories of the Dyson contained hair from a previous guest. That immediately raised questions about hygiene standards and attention to detail. I had initially requested both the Dyson hair dryer and the straightener, but after seeing the condition of the attachments, I declined. If the accessories are not cleaned properly between uses, this is a serious oversight. In most five-star hotels, premium hair dryers are simply placed in the room, and guests are charged if they remove them. Requiring a signed form for a hair dryer feels unnecessary and inconsistent with a high-end positioning. Loss of Identity Under The Sinner, the hotel had a unique scent and atmosphere. The music outside the rooms differed from the music inside. Staff uniforms were distinctive. The experience felt curated. Now, the music is the same throughout. The signature scent has been toned down or removed. The staff attire no longer conveys a strong identity. The toiletries have changed from something that felt unique to something very common. Even the bathrobes now simply display the hotel name, which feels more commercial than refined. Previously, when you passed the hotel, you didn't know it was The Sinner. There was no presence. Now, it blends into the street. Outdoor seating has been added, yet the surrounding neighborhood is not particularly suited for people watching. It does not enhance the concept. Service & Operations Service has slowed. When I requested plant-based milk, it took a considerable amount of time. The WiFi process was unnecessarily complicated. Even when I called reception, the staff member was unsure whether the password required capital or lowercase letters and asked me to try multiple variations. In Room 101, the phone did not clearly indicate which number to dial for reception. These may seem like small details, but luxury is defined by seamless execution. Positioning & Value The hotel promotes environmental messaging with cards encouraging guests to reuse towels. While sustainability is important, when guests are paying premium rates, the emphasis should first be on service and comfort. At this price point, guests come to feel cared for and indulged. The experience should not feel like a standard commercial chain. Today, Experimental Marais feels like an expensive hotel without a distinct reason to choose it.

Hotel has a great service, spacious room, reception with a wonderful cookie, close to everything in Marais! And there is a bar è restaurant that are well busy!

A 5-star hotel that places a heater in front of a bathroom sink because the heating of it is out of order! We will have seen everything, but here they did strong .Bravo Mr Manager . And that’s not all...