budget near Copley Square
Life is a series of compromises. That adage is true when you stay at Hotel 140. The best thing about the hotel is the location: Just off of Copley Square and next to an entrance for the Mass Turnpike (the turnpike entrance is actually under the parking garage next to the hotel). 
The hotel itself? Well, it used to be part of the YWCA that is still housed in another part of the building. Have you really been yearning to stay at a "Y" recently? The ghosts of the Village People haunt the hallways, and the rooms themselves are pretty "meh." (they used to be rooms used for the "Y," for goodness sake, so don't expect that "boutique hotel" experience they advertise) 
The "exercise room," at least on my floor, was a glass enclosed closet right off the elevator. When I am sweating and grunting, I love to be in a 10x12 cell where everyone getting on and off the elevator can see me. 
Staff is good, but there are not that many, and they look to be more than a bit overworked - my check-in took around 20 minutes because the two staff had to field phone calls from prospective visitors, people in rooms, as well as people approaching the desk.
Again, centrally located, and less expensive than the others in the area. These are the selling points.