Location, location, location
It's really all about location and since it's perfect there's no reason to write more about that.
We booked a parkview room and got a room at 23. floor. Sure, we could see the park in between the buildings in front of us. But with a building covering 98 percent of the view we felt obliged to kindly ask for a better view. The room was otherwise really nice. And... "sure, of course, no problem, will 39. floor be nice ?" Great service at the desk! And great view !
We also enjoyed the casual atmosphere and small amount of twisted humour here and there. (Please don't use the minibar as a fridge. If you need a fridge, please let us know and we will be happy to provide you one :) 
Somewhat strange though, to find absolutely no information about the facilities in the hotel. But the concierge could tell us everything.
I must mention the bed, which was just fantastic !
Many reasons to stay here, but I'm not to sure about coming back. I expected a little better value and missed a sort of "soul" you can find at many other hotels. The building itself is probably most to blame in that matter, but the staff is doing a great job trying to compensate. 
But of course, if you like to sleep well in a spacious clean room (with a view) within walking distance of everything, don't look any further !