eI've always had a healthy skepticism about Harbor Freight products, and consequently always research others' experience, in threads such as this, before I buy.
Ultimately, I'm very satisfied with the all HF purchases I've made:
1. RF-31 table-top milling machine clone. At the time, shipping was free on this 750lb machine, both ways if I didn't like it, once it arrived. Turns out it was a real gem, used it regularly for 15 years then sold it for what I paid, when I upgraded to a used Bridgeport!
2. A.C. winch that I use to stow a snowmobile trailer to the wall in my airplane hangar to save floor space. Been using it for over 10 years. Works reliably.
3. 4ft x 8ft fold-up trailer with 1100 lb capacity. Had two of them. Used the first one many years but it was stored outside and didn't fare well, rusted badly. Sold it and bought another a few years later, store it inside, holding up well. Light enough to pull behind the lawn tractor for yardwork, strong enough to haul full sheets of plywood and transport the lawn tractor, although I wouldn't trust it to the rated 1100lbs. Have a bigger trailer if I need the capacity.
4. Recently bought the full size hydraulic motorcycle lift table with 1000 lb capacity. Researched heavily on the web and learned all the complaints prior to purchase. Decided I could either fix or live with shortcomings. Was plasantly surprised that all the complaints I'd read about on the web had been fixed! I think the Harbor Freight marketing people read forums like this. It's rock solid and makes it a pleasure to work on heavy things at waist height instead of on the floor. This table is a real gem, particularly for the $295 I paid (with coupon).
5. Recently bought one of their ball bearing 16-drawer red tool boxes from recommendations on forums like this. This box is very high quality, certainly noticably better than my Craftsman ball-bearing boxes. Paid $269 (coupon and floor model). Very pleased.
6. Recently took a gamble on one of their 4x6 horizontal bandsaws having read all the web
complaints. The damn thing has been working flawlessly, cutting perfectly square right out of the box with the stock blade. Paid $199 (with sales coupon). No misgivings that the blade probably won't last long. Glad I bought it.
7. Recently wanted to construct a welding booth. Priced out fabricating a structure from Unistrut and welding blankets. The HF heavy duty scaffold was cheaper and it was basically ready to rock right out of the box. I adjusted the platform all the way to the top to form the "roof", hung the same welding blankets around the perimeter. Makes a nice welding booth. When I don't need the booth anymore I'll have an adjustable scaffold/bench/shelving unit instead of a pile of cut Unistrut sticks!
Not kidding myself that I won't get a "stinker" from HF someday, but I always read threads like this before any purchase and have never been dissappointed yet with HF purchases yet.