I had the opportunity to stay here for four days and had an enjoyable time. The location cannot be beat, even if you're in the apartment it still feels like you're a part of the people on the street by opening a window, and there are tons of places all around. Checking in was a breeze, there are narrow stairs you'll have to climb, and I had no problems with the place itself. If you're coming during the summer the bedroom has an air conditioning unit which is pretty key as it can get warm and opening the window will bring in the noise from the street. It also has a dryer in addition to a washer which is pretty rare and was neat to see.
The only downsides I could think of would be that there is no shower curtain or anything that blocks the water so the bathroom can get quite wet if you're not used to having a shower curtain, and there is only one shower. If you had a couple people staying there I'd imagine it would get unusable after a couple showers. Also I noticed the loft is quite warm but did not sleep there, I'm not sure how comfortable it would be in the summer.