I have been using a quick hitch from Harbor Freight ($80) for 5 years with great success, zero maintenance. Bought Pat's Easy Change to have more flexibility with the top mount on a new arena drag.
Used the product for 3 hours brush mowing (light and easy weeds) and the thing fell apart. The latches that hold the pins in broke off, as well as a few other parts. Unable to use anymore. Went back to my quick hitch which has given me zero trouble.