20K Curt hitch

Thanks everyone for your opinions on the Curt hitch. I have located a used 20K hitch for 250.00. That I thought was a decent deal, but wanted to get some feed back as to what others thought of the hitch. I have the rails already so it would just be an upgrade from my 16K. Once I replace this tow vehicle I will consider other brands, but do not plan on using this TV much longer.