What are you towing?
All I have heard is the Anderson works great for a little while on heavy trailers then works bad later. On light trailers it always works good. The weight on the tongue is the issue as the Anderson really shines with lighter loads, but the heavy loads just wear it out too fast.
Side note.... I bought two used, really used, WDH's on craigslist and they worked perfect and I put about 40,000 miles on each one. The first one was fine, but the second one I got came with a trailer so I started using it.
Craigslist is not dead, but fb market did take a big chunk out. I have bought and sold a lot of craigslist.