Alex's place is super conveniently located. It made it really easy to get anywhere in Brooklyn and Manhattan, and the G train is right there, so Queens is a pretty easy destination too. The bedroom is quiet and clean, and I was a big fan of having the AC right by the bed - but if you're sensitive to AC sounds, bring earplugs. (I mean, you're staying in New York - probably always a good idea.) The street it's on is just off a main drag but feels like a quiet neighborhood, with two bodegas (one open 24 hours) within a block or two.
This is a great home base for your New York trip. Alex and Reha were really helpful when I asked about things in the neighborhood and generally really accommodating during my trip.