Perfect Location, Nice Hotel
I had my parents and sister stay at the Westin Copley Place when they came to visit Boston. It was the perfect location, right in the center of great shopping - connected to the Copley Place mall and the Pru, surrounded by great shops + restaurants on Boylston and Newbury.
We used the TripAdvisor Special Offer to book, and got 40% off the 2nd night. My dad also got a free upgrade to a junior suite with beautiful panoramic views of the Charles/Cambridge, Kenmore, and Back Bay. Great deal! My sister brought her dog along for the trip -- if you bring a dog, be aware that the Westin makes you sign a waiver that you cannot leave your dog unattended in the room and that you will be charged a fine for any complaints. Great that the hotel is dog-friendly, but we should have been made aware of this waiver before our stay.
Rooms were nice - the junior suite seemed to be connected to the surrounding rooms, so if you looked to the left or right of the window curtains you could see into the room next to you. Beds were very comfortable.