I only stayed for a night, but had a wonderful visit! The campsites were great, somewhat close to others but that was fine. Bathrooms were okay and dumpsters were a bit far, but you can drive to them rather quickly. Note that alcohol is not permitted and quiet hours start at 9pm. We also did not have cell service- among our group we had TMobile and Verizon.
The park itself is beautiful and the Falls Trail is an absolute must. I'm definitely planning on visiting again, as one night was not enough!