We went on a half day rafting trip down the middle fork of the flathead with our guide Frank (real name Will). Being also from Massachusetts I was shocked by how friendly and kind Frank was. He was also an awesome guide. Pointed out all sorts of facts and had an answer to everything we asked - how deep, cold, long, etc about the river. What kinds of fish, locations, and water levels. He knew everything. He was also pretty funny. (Though not as funny as Vance the head guide and guy who led the bus tour and instructions. Was hysterical).
We had incredible weather on our early afternoon run and the trip down the river was beautiful. Very easy for the young kids on the boat as well.
I would definitely come back and give my business to Glacier Raft Company and specifically ask for Frank as a guide. Especially if I was taking one of the overnight trips.