My MiniMax J/P is part of the "heart" of my shop...I'd not give it up. No horror stories and I really can't imagine why there might be any, outside of a vendor seriously cutting corners on design and quality. So far, and as discussed in threads already here at SMC and elsewhere, the value priced products are doing a pretty good job. They might not have some of the refinement that the MiniMax, Felder/Hammer, etc., machines do, but Jet and Grizzly seem to have gotten the essentials right. Combo J/P machines are great for providing wide jointer capacity economically and in a small space along with a planer of equal capacity. I'd have to have a MUCH larger shop to pine for separates at this point...
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The most expensive tool is the one you buy "cheaply" and often...