We stayed in Oasis 1 at the top of the stairs, so know there are stairs! However, it is a spacious, lovely flat with everything you need for a very comfortable stay. There is a great little gourmet market about 50 feet away, where you can get whatever you need food-wise. It's not that convenient for trains, but we wanted to do some nice city walking anyway, and if you don't prefer that, it's easy to uber. We really enjoyed our stay, and I think cozy is a bit of an undersell, it is a very nice place to stay to explore Brooklyn, Williamsburg, and Manhattan. Absolutely no complaints!