Great place to stay in Boston. Next to the Garden and <5 min walk to the North subway station. Friendly service! Nice linens, comfortable size rooms, free wine from 5-6pm in the lobby, Aveda products.

Would have given this hotel an "excellent" rating but be warned of the loud banging noise if staying next to the electric room. Almost sounded like a jack hammer going off once per hour for about 3 secs. Not too sure what the noise was but became used to it.

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We stayed at the Onyx twice in a fortnight at each end of a tour of New England, having stayed at Kimpton hotels before. These stays were as expected, nice room and very good service from all the staff we encountered. Location is fantastic for the centre of Boston either if you want to walk or get a cab.
Couldn't fault any of the services provided, very clean and well equipped and enjoyed the wine & beer hour which is a chance to chat to those who gather informally in the lobby each evening.
Would certainly return when in Boston.

Four of us stayed at the Onyx the night of the NBA Finals in the penthouse. We believe the Onyx, the Onyx staff and the Celtics to be winners.

Onyx staff emailed us before our arrival and asked if we had any requests for our visit. I emailed them a short list, including a couple specific items. Upon our arrival, waiting in our rooms were the exact items on our list.

Everyone from the parking attendant to front desk staff greeted us as old friends, even though it was our first visit to Boston.

Our rooms were immaculate and with four of us in the penthouse, we each had our own bathroom. Each exceptionally clean and well stocked with quality products.

Many things are within close walking distance of the Onyx, such as the subway, restaurants, shopping and of course the Garden. it doesn't get much more convenient.

We were driving a slightly unusual vehicle that created a minor problem for parking, but Onyx staff managed to park it safely away for the evening without complaint and made special arrangements for our late departure the next day.

Security was not a concern the night of the NBA final, as the Onyx staff had prepared a letter of procedures hotel staff would follow and hotel guests could follow for festivities after the game. We felt at ease and secure during our visit.

We watched the game from our living/office area of the penthouse and enjoyed the wet bar facilities and the large TV.

Did I mention we had a great nights sleep, well we did as the beds are great.

We would enjoy returning and recommend a visit to the Onyx to anyone.

Stayed one night. Found the hotel typical of Kimptons hotels, meaning very nice. Something I wish I knew about before I booked is that they have kayaks and bicycles for use by guests. Close to subway.

Found the restaurant food alright, service was good.