We stayed for a weekend, the beds are really comfortable and the location is walking distance from so many great spots. There's some noise from the outside but certainly nothing so bad that I'd lose any sleep. I didn't in fact. Check in and out was easy; we stored our luggage before and after which was a lifesaver.
One thing I would certainly make sure of is that the 3rd floor stair climb is doable before booking. We packed lightly, but it might of been difficult for us if we had more to carry up. The stairs are older; so a bit more narrow.