I'm a solo camper, but if I was going with family, THIS would be the place. Sand dunes to slide down, a lake to swim in, tons and tons of kids riding around on their bikes (be careful driving!)
It was nice to come here during the Heat Dome of 2021. The weather was perfect for wading in the lake. I took my kayak out. Hiked on the dune trail and didn't see anyone.
Unfortunately, my site backed right up to a very popular path to the bathroom and had kids riding their bikes up and down, up and down, up and down. I didn't feel like I had any privacy. I even had a little girl come into my campsite and ask if I had kids.
I did enjoy hanging out at the lake all day and watching everyone play in the lake and snowboard(?) down the sand dunes.