I hate to encourage their incorrigible business of selling cheap chinese crap, but...
Air impact guns: I have one that is as good as my IR one, and one that couldn't break loose a hand tightened 1/4" bolt.
Torque wrenches: 1/2" one has been great for 1/2" type of work (50ft-lbs plus). Anything under that seems to be too tight or just inconsistent. What did I expect for 9.99.
TIG welder: Gets the job done. Nothing fancy, but creates a DC sine wave and makes the tungsten glow.
Pittsburgh ratchet wrenches: Like a boss. I've torqued the hell out of these things, and they have held up outstanding. I even accidentally left them in a tub of water for a couple weeks, and when I got them out, they were all rusted and would barely move. I sprayed em with PB Blaster then WD40, and they have been great ever since.
Auto Darkening helmet: Seemed fine till I got a nice Miller one. The delay is too much and too inconsistent, but much better than no helmet. For a couple welds its fine, but welding alot with it gave me headaches and bright spots when I closed my eyes. Apparently I'm not the only one.
I tried one years ago when I was in a welding shop doing a lot of welding.
After a few days of using it all day, I threw it in the trash as it caused my eyes to hurt.
I also have one of the HF 8000# winches on my trailer. It works, but sometimes it doesn't. But usually it does. When it does, it pulls great.