Man, some of you guys are CHEAP and SPOILED!
Its very difficult find any sites that I desire on major trips under $45 unless I'm at a State Park. Low water pressure might be worth a complaint, otherwise the rest of the rant is very trivial and is typical of many grounds.
Regarding KOA's, when I'm on the road I HIGHLY prefer and seek out KOA's. I have stayed at dozens of them and have another 6 lined up for next Summer's trip.
I like KOA's super easy to use online booking system, most with 12 month or better lead time booking, and I've never had any problem worth complaining about at any of them. Not even the "destination" geared grounds where most stay only one night.