Great Layover and Beautiful Hotel
I stayed here for a single night layover, and was really impressed.
For an "airport hotel" it is EXTREMELY well appointed. The lobby is beautiful, and rooms are clean and well decorated.
The service was very professional, fast, and thorough.
Advice: even though it is connected to Terminal E, unless you are flying in/out of that terminal, it is advisable to catch their free shuttle. It is faster for you to drive around the airport, rather than walk through it. (The website suggests this, but I ignored their advice and decided to walk from B to the airport...it took about 20min. The next morning, the shuttle took about 3min too get me back.)
The bar/restaurant is good, with prices you would expect to pay at a large airport hotel in the Northeast. Service was gruff, but I think that was part of the bartender's "schtick" (you know, putting on the rough Boston-vibe for the tourists), so it didn't hamper my experience.
They charge for internet (except in the bar/restaurant/lobby), as is becoming the norm all over the US. Make sure you mention if you are Rewards member (even if booked through a third party like priceline), because they will give you a wifi code for your room.
No complaints...I don't know if I would stay at Logan for a trip to Boston itself, though I would be tempted to consider it based on the quality of this hotel.