Bought my first tractor 6 years ago. a
BX2200 and started adding implements, a landscape rake, a boxblade and a rear scraper blade. Hated putting the implements on since I did it alone. Discovered Pat's. Became a believer in Pat's. Only thing was upper arm to short but TSC had a longer one for around $20.
Traded the
BX2200 to a
B7800 and bought a
BX1500 so I then needed another set of QA's but not willing to pay that much for another set of Pat's so bought a $90 set of cast iron ones off ebay, not as strong as plated steel like Pat's per my machinist brother in law. Now I'm cooking, got QA's for both tractors. Added a Ferguson overseeder. Still great. Added a tiller and Uh oh! Drive shaft to short! Remove Pat's and make brother help me install tiller the old way. Several trades later I end up with a
BX2660 and a
BX25 which doesn't even have the 3PH arms. I now have an extra set of QA's. Cheap set slip off and on in a few seconds and Pat's takes several minutes and tools to take off and on. What to do? I sell Pat's and keep cheap set which I've used for several years with no problems. Still can't use QA's with drive shaft implements so since I had the money ($100) from the Pat's sale I ordered a set ($70) that hook on top of the arm instead of behind. Haven't hooked them up yet but when I take my tiller off, I will.
Pictures of all three sets.
Bottom line, Pat's are great........... but.....upper arm may have to be replaced and drive shafts may be to short. I'm not slamming Pat's, they are a great Kentucky made product but they as everything else have limitations. No, the cheapos don't have the same method of slide locking the top of the implement pin down as Pat's does. I always have to get off my tractor when I hook something up to attach the upper arm and if it has a drive shaft I have to hook the drive shaft so I don't mind sticking the ring or bolt in to lock the implement pin down before someone points out how much better Pat's is because of their slide locking retainer. Usually Pat.

If I were pulling really heavy stuff alot and it didn't have a drive shaft then I believe Pat's will be stronger than the others.
Disclaimer: I get the same commission on any of these.