I have a Trail-Rite trailer for my 22. The dealer in Ventura gave me an option of going with the factory trailer at the time (2008) or having the local Trail-Rite people build one, as he was about to start using them for his sales, so I went with that. Trail-Rite is very common around here, made in Santa Ana.
Mine showed up with the padded side rails assembled wrong and we had to re-do them at the dealership, although I can't remember the details.
After using the trailer a couple times I realized the winch and bow roller were aligned -under- the bow eye on the boat. This turns out to be really dumb, as the boat often hangs up on the roller and you have to work at it to coax it over. I talked to the dealer and trailer people a time or two, but was getting stonewalled, so I made a couple of simple metal parts and modified it myself. After building as many trailers as they have, they should know not to put the roller underneath, and they should have jumped on a chance to fix the mistake on mine.
A couple years later the brakes failed and I traced it to a really poor job of not strain relieving a stainless brake line and it fatigued the connection. Water had gotten into one brake assembly and I bought a whole new one.
(While bleeding the fluid after that job I found a problem with the master cylinder surge assembly and was trying to fix it but the Lake Powell trip was upon me, so I bought a new assembly there, too.)
That last one maybe wasn't Trail-Rite's fault, but for the first three I consider them to be incompetent, or irresponsible, or sloppy, or just bad people. I'd try to avoid them in the future.
The basic construction of the trailer seems good, and now that I've fixed the problems all seems OK, so I don't expect further problems.
-Jeff