The John Bean brand is owned by Snap On and sold by Snap On and it's affiliated companies. Up until recently, the John Bean lifts were built by another Snap-On owned company called Wheeltronics in Mississauga, Ontario. From my understanding, Wheeltronics is being wound down (or has been) and Snap On has switched to their newest purchase, Challenger Lift, to supply lift products. (From what I have seen so far, Snap On will be selling the Chinese imported brand of Quality Lift under the John Bean name).
Depending on which lift you are looking at will determine the quality of it. Wheeltronics made some good lifts and also made some real sub-par products as well. My experience trying to get parts for ANY Snap On, John Bean or Wheeltronics branded lifts is that it is a pain in the ***. Everything is handled by Snap On's "Service Center" out of Arkansas, but no one there knows anything about any of the products and I have more service manuals for their products in my office than they do in their service center. Many parts (historically) have not been available and if you COULD by chance get them, the lead time and prices were outrageous.
Challenger, on the other hand, has always been a competitive commercial brand and even their "Quality Lift" brand has had some decent success. Hopefully, being purchased by Snap On does not lead them down the path to ruin like so many other Snap On owned equipment brands.
(BTW, Snap On still makes some of the best hand tools available. It's unfortunate that equipment lines they have purchased have done so poorly).