There's also Ambition in Cambridge which has a good reputation. It's a body rub style place, so I'm not sure how far the options go.
There are a couple of AMPs throughout the region that are decent.
As snoop mentioned, Mia and Friends get good reviews. I've been there a few times and have always left happy.
There's a place in Cambridge that's been kind to me as well. No idea what the name is, but it's a bare bones AMP establishment with good service.
There are other AMPs which are hit and miss.
There is one almost legit place that has two "older" Chinese women. They both give very good massages and a basic HE. Nothing more, but very good value for the dollar. Jia Massage Centre, or something like that.
Like snoop said, nothing like Perla, etc.
Although I hear Hush is quite nice. Haven't been there myself, so can't really comment.
If you try out some places, let us know how it goes.