Booked this hotel on www.1800hotels.ie and got great value. The hotel is located on Tremont St which is extremely central, close by Government Centre train station and Boston Common.
The rooms are very nice, as are the staff, food and the whole atmosphere there.
I would recommend this hotel to couples, singles, and anyone looking for a central hotel in Boston. Make sure you get a good price though as it can be expensive to book directly.
Hope this helps.

Our overnight stay at the Nine Zero ( 90 for regular folks ) worked perfectly because of its proximity to central Boston. One block from the Boston Common and an easy walk to Quincy Market and the red-line walking tour to Paul Revere's House and the Old North Church. Even better was the walking distance to Boston's Little Italy and great restaurants. The staff was friendly and check-in was a breeze. Directions and maps were provided promptly upon request. Our room was ample with a very nice bathroom. My only complaint was the low lighting throughout the hotel and rooms. Other than that, our stay was great and I would recommend the Nine Zero. The staff was outstanding.

From what I remember, this was a really nice hotel. The beers in Boston flow rather smoothly, so I do not remember much about that night, but checkin was great, room was nice when we got there, and service was good. I book through some sight called skoosh.com or something(was leary at first) at a rate of $210/night, so that worked out well. Nothing bad to say here, you will enjoy it.

My wife and I really enjoyed our time at the Nine Zero in early April. Got a good online deal, which cost us just over £100 per night - so it's worth shopping around for deals on this hotel. We had an excellent, comfortable room - bed was very, very comfortable, excellent bathroom, nice shower, etc.

From the hotel website images we were worried the decor might have been a bit too much - but actually the room felt very comfortable.

The rather patchy wireless coverage (which came and went) was the only significant problem.

Staff were excellent. No snobbery, but still very helpful when needed. Our 7th floor room was a little noisy from the street - ideally would have been better to be higher up, but this wasn't a real problem. Well-stocked minibar. Really great central location - just off Boston Common, and right next to both Government Central and Park St metro stations (and H&M, Borders and Macys just a block away!)