We were a little sceptical about visiting this National Park as some reviews were a little on the negative side. We absolutely loved it here, it is well organised as will most national parks in the USA and we saw more bears and other wildlife here than we did in Canada. We went for 3 nights and stayed in Three Rivers just outside the park.
The only downside was the road works on the mountain pass where we could sometimes be waiting up to 30 mins to get through the lights, if you timed it right though it wasnt an issue. Hopefully that should all be fixed and massive credit to the guys working on the project to make this place accessible for all.
Definately would recommend a visit here.