Lots of complaints about POS tools from Harbor Freight. Why are they surprised? HF sells cheap. Yout get what you pay for. Like that lousy Craftsman contractors TS I bought (used). Used it for a while then got so frustrated that I bought a Delta contractors saw. MUCH better.
What bugs me is paying good money ($100) for a Porter Cable dovetail joint router jig, and having it be mediocre. PC cheaped out on the screws. They stripped out right away. I replaced them with generic fasteners from my screw bin which have held up much better. The hold-down bar is made of some new extra-soft steel which forces me to really crank down on the hold-down screws to get my workpieces steady (maybe the cause of the screw failure?). I cut myself on burrs on some of the sheet metal because they weren't deburred properly.
Should bought the expensive jig. Then I would have had more flexibility and higher quality. I know better than to buy cheap, but sometimes my wallet does the talking instead of my brain.