I used to be a CFII at Executive Flyers Aviation out at Bedford Field. Granted, this was a long time ago (1996) but they're still there and going well. Michael Goulian is the owner and really, really nice guy. They don't have much bad reviews. They had a huge fleet when I was there, and still seem to. Plus, they have their own maintenance on-site so the airplanes are usually in good shape or fixed fast. I'd recommend them.
Edit: Yelp has one recent bad review, so maybe things have changed....
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