Beautiful Lake, great camp spots
I stayed at the Wild Plum (primitive) camping area with my son in early spring. The trail path to the campsites is further than indicated or implied on the website, which isn't a problem if you're packed light, but if you're car camping with heavy equipment you will be surprised how far it is. I was packed somewhat medium in gear and it was quite a trek to carry all of it with a young child who is basically worthless at lifting things.
If you're picking a site in this camp area, #117 is right off the trail and nearest to the community restrooms. I did not stay at this spot but did not that it has a great natural spot for a hammock. Sites 119-122 (maybe 123) are right on the lake so you can see ducks and do some bank fishing without needing to go anywhere.
Wildlife were very quiet and the stars were bright on a clear night. Sites are far enough away that you have to shout at your neighbors, so feel free to stretch out and be yourself without worrying about being too noisy (within reason). There's also a great little park near the boat ramp area. You can swim there, use pavilions for a large group, or fish out on a pier.