My wife and i spent a few days here exploring the local area, there is a lot more to see here than just crater lake. The staff were very friendly and knew the area well, recommending good attractions for us.
The park itself was well maintained, nicely treed, and laid out in a way that gave privacy to the sites. Toss was also the quietest park I have ever stayed in, by 8:30-9:00 it was silent. I figured everyone must get up very early, but no... It didn't start waking up till around 8:30 or slightly later.
We are planning our next trip there for later this year... It's that good.