We stayed here for 5 nights in August, and loved it for so many reasons. Our campsite had a fire ring and picnic table and room for our car. It felt a bit secluded from our neighbors thanks to the trees, but we could sometimes easily hear the neighbors to the back of us. There is firewood and ice available (even block ice!), laundry, showers, bathrooms (all of which were clean and nice), as well as a pool! The campground is on the Island Explorer bus loop, which is the bus that takes you all around Mount Desert Island, to Acadia, and Bar Harbor. We used the bus almost every day, and it was super helpful because you do not want to try and find parking in Acadia in the peak season. Two days in a row our car battery didn't start, so one of the staff came with a battery pack to help us. They were super helpful and nice, and got us on our way! We would definitely stay here again.
Camped here two nights: first night in main area near bathrooms, second night across the street in the overflow camping area. We actually preferred the second night more than the first! Even though there were lots of hikers during the day, in the evening it quieted down and was lovely. I recommend you start your hikes to early, right after breakfast before the day hikers start, and that you visit Wardensville and the Lost River Trading Post!
I have stayed at Kentuck twice now, once while leading a trip with students where we were in tents, and once on a personal camping trip in a van. Both times I loved how close Kentuck is to Ohiopyle, and the amenities they have there. There is firewood for sale (cheap), bathhouses, water, dumpsters, fire rings at all sites, and the staff was helpful and friendly. I drove there both times, but there are campsites available that are near a trail that runs through the park and the campground I believe. I recommend this place!