I paid $ 575 for one night in a " DE LUXE SINGLE ROOM " and they placed me on the first floor upon the rubbish dump of the hotel and stuck to the scaffold with the rubbish slope. Realized all this when at 7,30 a.m. the suppliers truck started parking under my window. I complained about it and the manager said she could do nothing about it because the room was already prepaid. In addition to all this they tried to charge me breakfast twice at the check out. Avoid it. Plenty of good hotels around the corner.

Stunning in every way. Rooms and bathrooms are luxurious, in the traditional old-world English style. Location is quite good on Park Lane, though a bit further from the tube. Breakfast is fantastic, though pricey. Service is quite nice, and the lobby area is a great place to relax and have a drink. All in all a really gorgeous hotel, would highly recommend.

Had a short Business Trip to London and just got back and felt that I should share this with you. This Hotel is simply FANTASTIC! I only got to this Hotel as the City is sold out due to Wimbledon and therefore I managed through the company to get a suite in this Hotel. The Suite itself was amazing. It had a beautiful view and you could sense the care to every single detail in the room. The Bed! Just a dream to dream in it - unfortunately I had to wake up due to my meetings. Rarely have I seen so impeccable service. From the Reception to Departure it was just a warm smile and sincere appreciation to all guests, although the Hotel being full (especially with many Middle Eastern big families), they were never too tired to great and assist. The food was fantastic and really worth a stopover for whoever comes to London.

We stayed at the Marriott Grosvenor Square for an entire week over the Easter holiday 2008. They are undergoing extensive renovation and did not warn us prior to our stay. There was no restaurant for breakfast and there was extremely loud construction the entire stay. I was extremely disapointed by the lack of concern for the guests. The hotel is very expensive and the rooms are very small. The front desk hostess was very rude and gave us wrong information regarding our travel on two ocassions over the week. To be quite honest, the only positive about this hotel is the location. I do not recommend staying at this hotel. There are many other hotels in London with much better service and concern for guests.

Stayed at the Marriott Grosvenor Square in late April. All went well. To get to the hotel, we took the Tube (London Underground). It was a little long (45 minutes from Heathrow), but was just $4 GBP. That was different than the $50 GBP it would have cost to take a taxi and when you are coming from a weak U.S. Dollar at the time, every dollar counts. I would recommend the tube if you don't mind taking the train. The inside of the hotel was GREAT. Upon check-in I was upgraded to a suite due to my Marriott Platinum status - nice touch. The room was huge and more than my wife and I could have hoped for. If you can, ask for a view of Grosvenor Square, which also includes the U.S. Embassy. The hotel is just minutes from Oxford Street, which is a HUGE shopping area. if that's your cup of tea, I would suggest staying here. Everything in this hotel was wonderful..... Great location, great time and Easy to get around. I would STRONGLY recommend this hotel and would stay there again in a heartbeat.