I agree with Totti K If you are at the conference centre next door, it is an ideal location and as mgips says it is a giant IKEA. It is clean, minimalist, tidy and efficiently run. all of the staff were helpful and friendly. as poplar cottage says the safe on the floor is a bit of bind, especially when that area is not well lit.
My only complaint would be the (i think it is called) Dream 23 bar on the 23rd floor, which was understaffed for the amount of people using it.
Oh, and no swimming pol or gym.