Geoffrey - I've always enjoyed Belgrade Lakes. The viiew off the first tee is worth the price of admission. It's not a world-class deisgn, but it is a lot of fun. And the staff has always been fantastic. Very walkable too.
When in June are you going? Be careful you'e not there during black fly or no-see-um season. I spent a summer in New Hampshire, and I'll never forget golf in June there becuase of the no-see-um's. Nasty little buggers!
IIRC, the rule of thumb was to avoid Northern New England from Mother's Day to Father's Day.