This place is right in the heart of the North End, but a block or so from the really busy parts so it's nice and quiet. Quick ride to the airport or anywhere in Downtown Boston. Also a block or so walk to the water and sites like the Old North Church, Copp's Hill, Mike's Pastry.
Really, the location is what makes this a nice place to stay. Also staying here was a great value considering how expensive hotels have become. As other reviewers noted, it is bare-bones and an old building with 4th floor walk up. The unit is very small but there is nice view out of the windows and it was breezy with the fans. There's a TV in the bedroom but not in the living room. There's no cable but there was a chromecast if you know how to work those. We brought our laptap and used the free wifi to watch Netflix etc which was fine. It's not a hotel or a modern apartment but it's a nice place to crash in a great location.