Imperial Hotel Bomonti Istanbul

Very disappointing stay for a hotel advertised as 5-star. Wi-Fi was extremely slow/not working, the TV had issues, the kitchen tap did not work and water repeatedly stopped during showers. Several bulbs and lamps were not working. The room was not cleaned properly no proper hoovering or mopping, dirty dishes left behind and tables not cleaned. We were also given only four towels for five guests. Some staff were unhelpful, and our children were told to keep quiet at an otherwise empty pool. The Booking.com photos also appear outdated and do not accurately reflect the hotel and facilities. Overall, the standard of maintenance, cleanliness and service was well below what we expected from a 5-star hotel.

The hotel's 5 stars should drop to 3 stars. The rooms are nasty and they also smell of sewage. Nobody did anything about it. The rooms were not made properly clean even after we were down and complaining to the reception.

Absolutely unacceptable experience! worst hotel stay in Istanbul! My stay at Mercure Bomonti Istanbul Sisli was shocking and completely unacceptable. This hotel does not meet even basic hospitality standards, let alone 5-star standards. Housekeeping was a disaster. The room was full of dust, poorly cleaned, and the bathroom was filthy with a constant bad smell. I complained multiple times, and the staff simply ignored the issue. No action, no follow-up, nothing. Breakfast was equally terrible. There was almost zero variety, and the quality was extremely poor. Even the simplest pastries available outside the hotel were far better. During a 21-day stay, we only went to breakfast 3 times because the food was genuinely unpleasant. The staff were rude, unhelpful, and unprofessional. The most serious and unacceptable incident was when the hotel staff removed my personal belongings from my room without my permission. I brought a baby food steamer from Bahrain because I do not feed my child outside food. The staff took it from the room without informing me. When I questioned reception, they admitted taking it and said it was “not allowed.” This is a serious violation of privacy and trust. I have traveled all over the world and always carry this item, this is the first time in my life such a thing has happened. Only after a major confrontation did they return it. For a so-called 5-star hotel, the service level was embarrassing. There was zero assistance with luggage. My sister had to carry the bags herself, and not a single staff member offered help. A random hotel guest helped us instead, while the staff stood and watched. This was by far the worst hotel experience I have ever had in Istanbul. The staff make guests feel unwelcome and uncomfortable, to the point where you avoid asking for any help at all. It is extremely disappointing because the Mercure brand is generally known for quality and professionalism, but this hotel is a complete failure and damages the reputation of the entire brand. I strongly advise anyone considering this hotel to avoid it completely.