I have flown out of Boston as well. They really are nice and the price is all-inclusive. Great transfers to and from the AC airport and the rooms are ready when you get there. I'd do it again.
Booked 2 nights and airfare to AC staying at Harrahs for the wife and I for end of July. All comped. Leaving out of Detroit Metro on Spirit. Haven't been to AC before. Any must do's while there?