"Out of Service" and Slow
This hotel is in a great location. It's close to the T and it's close to the North End and Back Bay. Location is the best thing about this facility. 
The wifi service was the slowest I've experienced since I used telephone dial-up to connect to the web and that was years ago. Using the hotel's business center (two slow computers) was very marginally faster. I was told that this updated internet service was recently installed. It must have been a nightmare before this "upgrade." It took about 15 minutes to print boarding passes so plan ahead.
The vending machine, ice maker on our floor and the washing machine were all out of service.
The bathroom was quite small, the shower door came off its tracks daily(fortunately, it was easy to lift it and get it back it the tracks), the shower (no bathtub) drained very slowly (that was fixed after a call to the front desk) and the sink stopper didn't work (not fixed after a call to the front desk). The room was adequate.
The staff were all friendly.
Contrary to earlier reviews, there is no complimentaly continental breakfast offered to Priority Club members. However, the Whole Foods Market (basically next door) offers a good breakfast buffet and fresh pastries and it was a good way to have an inexpensive breakfast.
There is no airport shuttle but the taxi charge was just under $20.
I would look for another hotel the next time I stay in Boston.