When we arrived greated by a lady who didn’t understand how many key cards we asked for. Then when I went to pay with my visa credit card she declined it asking for a Mastercard . I said I’m using the card I reserved the room with . Eventually went through. Our room was on the 5th floor - Tiny but suitable for the amount of time spent in there , not enough plug sockets, all located by the window , not ideal when doing hair as none by the main mirror , the room was very hot when we arrived I tried to work the Air conditioning but would only work if on Heat. We opened the window and a small breeze came through . During the night the temperature of the room was unbearable we didn’t sleep and when getting ready for the races the condensation was running down the window even with it open , we mentioned this when we went out for the day the receptionist shrugged his shoulders and said no cool air only warm , hotel controlled , I complained as said it’s unbearable in our room and again his shrugged his shoulders . The 3 nights we didn’t sleep as room was way to warm . It was still 21 degrees outside and Air Con was definitely needed the hotel advertises Air Conditioning and didn’t provide this . The bed was just a base unit with a mattress topper on and gave us both bad backs and when you moved in bed the topper followed you . Breakfast wasn’t a huge choice - it was very very basic. And for the amount of people , mainly English staying in the hotel the array of choices could of been better . You had to be buzzed in after a certain time at night , which is good for Security . But when you get back late after a long day out and you stand buzzing for 15 minutes and no sign of any staff becomes very frustrating to then find out the lift is broken and you then had to climb the stairs to floor 5 ||The only good thing about this hotel is the location for the Longchamp racecourse we could walk down to it 10/15 minutes saved on taxis and buses . ||We will be putting a formal Complaint into Booking.com about our issues with the hotel .