Zach's place was great! We had three (friends) in town for a long weekend to explore the city and we loved our stay there. Neighborhood felt safe/comfortable and was easily walkable into Midtown/Koreatown area as well as Chelsea Market (via High Line if you'd like!) or Hudson Yards (which was our favorite). Great breakfast spots around. We loved Citizen's Chelsea for brunch. We didn't really USE the subway much. Just took it once...but it was about a 7/8 minute walk to the E line. Not bad at all.
Only "downside" per se is that you can hear street noise at night. This would probably be the case anywhere in Manhattan though. No hesitation booking this again. It was a nice alternative to a hotel stay and we enjoyed the "local" feel to its location very much.