Absolutely Great!
Truly friendly service, excellent facility, wonderful location, comfortable efficiency apartment-style room. What more can one ask for? Reasonably priced in comparison to the options on the other side of the river in Downtown, yet a very pleasant stroll across to all of its sights and (bonus!) right near all the dining options of the North End. Our room looked out over the USS Constitution and the lovely marina next door, and we could easily look across the narrow river to the North End, with Old North Church at its apex. A great view! We even took advantage of the indoor pool area, which our young son adored. 
We stayed on Labor Day weekend, and even during that busy time the staff was warm and welcoming, the breakfast was varied and plenty. I'm pleased to recommend this hotel to anyone, especially those traveling with young children!