4th floor walk-up...73 stairs, wasn't in the description. Not a problem for me, but could be for others.
Otherwise, wonderful, stylish place, with all the amenities you'd need, much like a hotel set-up but with the local character of a brownstone. Sodt, confy bedding, everything clean. Good natural light and very quiet. Check-in was very easy. Sonder seemed quickly available, though I only needed checkout instructions. Would recommend for those wanting a free workout!