Our stay at Neil & Katie's place was great! The location cannot be beat: the subway is a stone's throw away, and there are many restaurants, bars, music venues, and convenience stores nearby to meet any need.
The apartment was clean, safe, extremely spacious (for NYC), and the rooms were private and mostly comfortable. I stay mostly because my friends indicated that the non-master-bedroom bed was somewhat uncomfortable. Sounds like it might be time to be updated. The master bedroom bed was very comfortable, as was the air mattress. Also, all of the air conditioners were in good working order and did a great job of cooling the rooms.
There was a bar / club nearby that played music until 2 or 3 AM every night. This didn't bother us too much, as we were out until about that time every night anyway (AND it was the weekend in NYC, what do you expect?), but light / early sleepers be aware. Also worth mention is the fact that Neil and Katie were thoughtful enough to provide a white noise machine in the master bedroom. It didn't completely diffuse the bass from the club, but it was a nice / helpful way to fall asleep.
Finally, communication with the hosts was easy. Katie was fast to respond and friendly. I consider this a great place to stay in the city.