We just returned from five nights at the Chincoteague KOA. I got a great deal over black friday weekend for a deluxe cabin but the "normal" prices are highway robbery. We paid $180/night booking months in advance, but even with the limited amenities due to covid the price per night was well over $300.
We ran into a problem on the 4th night of our stay where the propane leak alarm sounded at midnight. We grabbed the kids and drove to the overnight guard who called the local fire department. They came, checked for a leak and over an hour later we were back in our cabin. Our kids didn't sleep much after that and ruined our plans for the following day. And of course on the 5th and final night the alarm sounded at 9:45. Thankfully maintenance was still there and switched out the monitor for one from a newer cabin. Talking to a few "neighbors" this seems to be a common problem that has been going on for over a year! The management didn't call or come by to check on us and apologize once after this happened. To be fair, at checkout my husband spoke to the manager and she gave us a credit of $100. But even with that I am still a little disappointed.
Overall, my kids really enjoy the campground and area so we will probably return. The bathouses are very clean and there are a few to choose from all with laundry. There are kayaks available to rent and a small waterpark that is fun during non covid times.