Convenient, Comfortable, Great Athletic Club
My husband and I stayed here over Easter weekend for the Penny Arcade Expo. We booked it through Expedia and had no issues with checking in. 
PROS:
1) My favorite aspect of this hotel was its convenience to everything. Stations for the Red and Silver Lines were within easy walking distance, so you can pretty much get anywhere you need to in Boston. Within a few blocks are enough coffee shops, restaurants, and convenience stores to ensure you always can get anything you need, when you need it. 
2) The room was clean and decorated in a modern style -- no creepy floral bedspreads or wallpaper. Housekeeping was punctual and noninvasive. 
3) Athletic club was GREAT. Some fantastic machines available, and a pool with actual lanes for laps.
CONS: 
1) Room service was PRICEY. Sometimes I like to do the hang-on-the-door breakfast specials, but $17 for two eggs, sausage and toast? Are you shipping the eggs from partridges in Saudi Arabia?
2) They charge you for in-room internet use. I never condone this in hotels and will continue to rate down for it. There's absolutely no reason to charge so much per day for internet use when it doesn't cost the hotel extra to allow the rooms access to it. Good news though? Dunkin Donuts EVERYWHERE. Hit up that free WiFi. 
3) There was a lot of construction going on in the main lobby, which made it a place you didn't really want to hang out. Since we were in town for a convention, we were kind of looking forward to getting to know the fellow PAXers staying at our hotel, but without a hub like the lobby to bring everyone together we had a more difficult time. 
Overall though? Good place. We'd consider staying here when we come back for PAX next year!