I have been using a Curt Q20 for 4 years now. We are fulltimers, and have done 35,000 towing miles in that time. The hitch has performed flawlessly. Very easy to couple and uncouple, and it is quiet, no rattles or banging. I would definitely buy again. Check our blog here for more technical info.
I have to 20K Curt on my TV. Very easy to operate, but at my age a little difficult to lube and to check the bolt torques. I get help to do those jobs. Other than that, I love it.