Wife and I took an RV trip last summer....late May to just before the 4th of July.
Oregon to Idaho, Wyoming, Montana, Washington and back to Oregon.
Stayed in Whitefish for several days (family wedding) and did the Glacier day trip thing...........crowded......very crowded.
Yellowstone = crowded..........worse than Glacier.
My problem was that the last time I was in any of those places was the early to mid 70s, and it was amazing back then.
So, needless to say, I had a tough time adjusting to the new reality.
Whitefish is a very cool town but has become trendy and spendy (according to some of da local folk). Nice lake.