A bit disappointing. The terrace is on the first floor, surrounded by buildings. It's pretty useless, really - not a good place to have breakfast or meals at because of this (no sun, no views, you get dirt from other floors, etc.), if that's your goal.
It is very noisy. you hear your neighbors flushing toilets and whatnot. It was so loud, the first time I woke up I thought my girlfriend was using our bathroom. Not good to hear what other people is doing, and it's like they are inside the appartment!
I don't know if there was any other guest smoking in there before our stay, but there was definitely a cigarette smell in the room.
Will find something else next time for sure.