Little Crater Lake Campground is a small loop with varied sites. We stayed in #7, which is nestled in the interior of the loop and provides a lot of space and moderate privacy. This site does require some steps to the best tent areas over exposed roots, so accessibility is low.
The lake itself is small and pretty. Many people show up in the summer for the day to take a peek at it, so expect it to be busier during that time. The trail to the lake connects to the PCT, which can be taken to Timothy Lake.
There isn't a ton to do close by, and the road in is notoriously potholed, so this is a good place to hang out and relax.
Pump well water is available right outside the loop, and outhouses are well maintained. Firewood is available by the person who checks you in in the evening, but there is no camp host for all-you-can-burn.