If you're happy with something basic, the 4pts at Revere, near the airport, has tons of parking, attentive staff and (mostly) renovated rooms.
There is a stip mall next door with a laundry, if this helps. The gym is in good shape and there is free internet via an office facility for guests. It was one of the least expensive options at the time!

Free bootled water daily for SPGs.

Last year it was priced extremely well through hotwire.com as an airport hotel. Similarly, the BOS Hilton is handy if you need to be close to the airport.

Hope this helps ^