We stayed @ Mark's apartment for almost an entire week and the experience was great. The place is in great conditions and has everything you need, from a super comfy bed to WiFi. Privacy and space might be great for couples, but I can totally see 4 people sharing the space. The place is very well connected to Manhattan via the subway. Besides, Mark was really helpful responding emails before and during our stay. I will certainly try to stay there during my next visit to NYC.