First the positives, location is on the edge of the olympic park and has a subway station right beside it. Hotel was clean and had a good choice for breakfast. The main problem we had was the air conditioning was useless and our room was like a sauna. We stayed for 3 nights and the first night was so unbearable none of us had covers and I had to repeatedly get up through the night to run a towel under the tap and sleep with it on me to cool me down it was that hot! Spoke to the man at the desk in the morning and he said he would get someone to look at it. We went out for the full day and returned late on and quickly realised it hadn't been fixed or probably even looked at, after dreading another night in the sauna I went downstairs and was rudely told by whoever was on the desk what do you want me to do? This is unacceptable, I went through to the bar to get some bottled water for my family and the man working could see something was up and after explaining he kindly gave me free water. After another dreadful night we just said to ourselves it's just one more night and we're gone, it's such a shame because something as simple as no air conditioning ruined what would and should have been a pleasant stay. We stayed in a further 4 hotels during our summer trip in Europe and never had this problem.