We stayed in this apartment for 2 nights in mid-October. All in all it was a positive experience. Can't beat the location (East village, minutes from St. Mark's). Had 4 adults and 2 babies, and there was enough room to accommodate all, even if not super-comfy.

Pros:
Location, location, location

Clean and well facilitated

Big enough for 6 people

Cons:
3 flights of steep stairs to get to the place. If you have tons of luggage - beware.

Sleeper couch in living-room is not so comfortable. Ok for kiddies, not so much for adults.

1 of the 2 (full) baths are located inside 1 bedroom and the other one is downstairs in the living area, which is a little weird if you need to use it during the night and go through someone else's bedroom (not so bad if you are all one family or close friends...)

Also:
I read something that really scared me in one of the reviews just before we arrived and want to address it: we slept in all 3 sleeping spaces and didn't encounter any kind of bed bugs. Don't know if owner took care of that or it was never there, but we never had any problem like that during our stay.

Seith responsiveness was OK. Always got back to us within few hours and answered the dew questions we asked.