Pool deck cannot be missed!
Husband, daughter, and I were in Boston for three nights for college visits in Boston, Providence and Worcester. 
Pros: 1)Pool deck has unbelievable view of Boston Harbor; we had coffee in the a.m. and after dinner drinks in the p.m. Loved it. 2)Staff was generally nice and efficient. 3) As other reviewers have said, location is marvelous. 4) Valet parking was super efficient. 5) Starbucks on site, and very hardworking team. 6) We enjoyed aquarium/harbor view from room very much.
Cons: 1) Got a great pre-pay, mid week deal; would have been a bit too expensive at the regular rate. 2) Rooms are small. Bathroom is hilarious: weird, cupboard, like doors. We thought it was like entering and exiting a cuckoo clock. 3)The atrium design does not work, as it leaves unsightly, cavernous empty spots to gaze down upon from your room door. 4) Valet parking a bit pricey ($46/day plus tipping) 5) Starbucks overwhelmed on Saturday a.m. 6) Two after dinner drinks cost over $30. 
Having said all of that, would definitely stay again. A great base to explore Boston; just be prepared to spend!