Nice rooms, good location but expensive parking!
Good location with prudential tube stop right outside but to be honest we walked almost everywhere as Boston is a pretty compact city. I would as a guide say 7 mins walk to Copley square and 15 to the main park to start the freedom trail which in itself is 2.5 miles and very walkable even with diversions to shops and historical sites. I must say we rather enjoyed the historical nature of the city, quite different to the usual US city visits. The
Prudential centre shopping opposite and Copley mall 2 mins down the road and usefully Shaws supermarket opposite with a usefully large range including fresh muffins and donuts for breakfast. 
Rooms were a good size for a city location, we had a super king bed and it was very comfortable. Our room was on the back of the hotel and silent all bar the air on unit which was rather noisy but we just switched it off at night and the room maintained the temperature well. I believe the hotel was recently renovated but I think they left the original air con machines in the room just re boxing them in wood but I could be wrong. 
There was coffee and tea making facilities in the room via a one cup coffee maker. 
Expensive parking $38 integrated to the hotel floors 1-4. 
Sounds odd but lifts came quickly and often waiting in lobby for you when you came in. Some hotels you wait ages. There was no free wifi. The shower was powerful and just what you needed after a long flight. 
I recommend you walk along Newbury street for its international and independent shopping mix. The neighbourhood had a lovely feel (this is Back Bay) and several choices for dinner. We enjoyed Joes for ribs on our first night (restaurant downstairs), went to South End Buttery (lovely independent and great food), 5napkin burger (opposite the hotel) as we had had a long day. All good. We also lunched in Little Italy (while on the freedom trail). 
You must also walk around Beacon hill, a delightful neighbourhood and Charles street there has some great little shops and restaurants. 
While we were here we flew up to Buffalo to see Niagara falls - prebooked and an easy trip to make. 
You can see my other reviews on our New England trip by searching for these hotels and places. We did 14 nights in total with a mix of 1 and 2 night stays with Boston at 4 and Cape Cod at 3 and hired a car from Boston airport in our return from Niagara on our last night there: 
Portland harbour hotel, Portland 
Merril farm, North Conway
Stowe Mountain Lodge, Stowe 
Woodstock Inn, Woodstock
Marriott, Newport
Belfry Inne, Sandwich