We (me and my son (11) had a very pleasant stay at Novus City. The room was delicate and spacious, beds comfortable. A bit of noise from the street, despite being on the 6th floor, and if there were noise in the corridor, we could hear it (but that happened rarely). Pleasant and helpful staff.
The pool on the roof is small, but nice, and the area around it likewise. Great to hang out after sightseeing! We ate at the roof several evenings, lovely view, decent food, ENORMOUS portions (American sized...). Personally I dislike there being music being blasted at the roof at all times, but that might be just me. I hear some people like that kind of noise... Didn't hear it in our room, thankfully.
The area is neither fancy/posh nor pittoresce, it is just a neighboorhood, with people living their life. The hotel is one of the best buildings, rest of them are more "tired". I never felt unsafe (but I generally don't). Very easy to get around with the Metro!
Great breakfast! Nice touch with the ceiling that partly opens!