Great location and what we expected
The Parker House is a charming hotel in a fantastic location. We were visiting our daughter for a school break and booked an executive room with 2 queen beds and were very glad we did. The regular rooms we saw were quite small. There appeared to be just enough room to walk around the bed. The executive room had a sofa and chair in a sitting area as well as a desk. We did have drinks one evening in the bar and the service was nice. Breakfast at Parker's on Sunday was nice. When we called to make a reservation the host wasn't terribly clear on the breakfast/brunch times. We wanted a breakfast and it was just closing when we arrived but the chef was kind enough to keep the bar open and make omelets for us. He even came over to make sure we had everything before he closed down.
We got a great package through the Omni sight that included valet parking ($42 per day). We didn't need to take the car out until we were ready to leave, as you can walk most anywhere in downtown or take a short cab ride. 
Overall, the Parker House makes for an enjoyable spot in a great location in Boston.