I've flown on the 1900 and agree with the description offered by
Travels2mch; and from what I recall, if it's an evening flight I
wouldn't count on getting much reading done. I must say though
that I like it better than a Jetstream.

Never taken the BOS-BHB but have occasionally seen
it listed as cancelled on the monitor when checking my own
flight. That's probably not what you wanted to hear ...