The park itself is located in a great region, close to many other top attractions of the Finger Lakes region. There are few nice hiking trails right from the park, which our whole family enjoyed.
We camped as a small group in two sites across from each other. Where we were, the sites were close to the road, and the road noise was distracting. The sites were also very close to each other and rather shallow, thereby limiting privacy. Upper sites, closer to the falls looked a lot nicer, deeper, and quieter, but we had no choice since it was booked with short notice. Not much to say about park facilities. Basic restroom and shower facilities, but the ability to do dishes in the designated sink in the bathroom was a plus. Bathroom facilities were old and not well maintained. We barely saw any real cleaning either. So, that was a bummer.
All in all, if you are eager to get out and camp, and have no better choice, I would say you will be OK. Otherwise, there are nicer options around.