I didn't get to meet Gus, but Holly was friendly and helpful.
The room is nice, and the apartment has a lot of nice touches. The bed was super comfy too.
Its an older apartment at a very convenient location in Williamsburg, just a few blocks from a subway station.
Just be ready to climb some stairs when you come and go. As others have said, the area can be quite loud. I sleep like the dead so this didnt bother me, but if you are a light sleeper you might want to bring earplugs.