Compact 1/2 Impact Wrench
MAJOR FAIL
Bought the first one in July 2010. Used it for approximately three months before the throttle body retaining roll pin vibrated out and shot the throttle body out of the gun. Exchanged it for another one. That one lasted two months before seizing up. When I whacked it to unseize the hammer mechanism, it fired once and then seized up with such force it shot the grease fitting out of the gun body with a big spark. Exchanged for one more, just for giggles. Worked fine for about a month, then started losing power dramatically. At the very end it would have trouble removing 19MM lugnuts torqued at 85 lb/ft. I returned it forever this morning. Note that I oiled it every day before use, and if I did a lot of tires that day, I oiled it again. A shame, since I loved the weight and size of it.
5-Piece Trim Stick Package
MAJOR PASS
I use these all the time at my job. I have never once broken one. The only downside is they tend to flex a little bit, so if you're fighting a piece of trim with particularly strong clips, you might have to bust out a more rigid tool. That said, I have no complaints.
32 LED Flashlight
PASS
I bought this sucker for six bucks, and it works fantastic. It's small, throws out a ton of light, and takes AAA batteries. The only problems with it are that it eats batteries like popcorn, and mine is starting to flicker. I think it might have a bad connection somewhere. No matter, I bought another one today for six bucks. They are usually ten, but are currently on sale.
Extended Reach Cut-Off Tool
PASS
Works great. A bit noisy, but what cut-off tool isn't? The head has a bit of gear noise, but I have not noticed any issues. May just need greasing.
Extended Reach Die Grinder
PASS
Works just as you'd expect a die grinder to work: Fast and loud. I use it with a Roloc disc on transmission pan rails with no problems.
4 LB Deadblow Hammer
MARGINAL PASS
It works perfectly fine as a heavy deadblow, but one of the plastic faces has torn and is starting to come off. This appears to be due to how the weight contacts the backside. I'd recommend it, but with a caution. I'm always a bit concerned that the next time I use it to hit something it might completely tear off the face and the weight'll shoot out. I figure a bit of Gorilla tape would fix it up, though. Note that the 1 LB version is perfectly fine.
3/8 Drive Mini Air Ratchet
MARGINAL PASS
It's great for running off nuts and bolts, but when running them down the head will slip once the fastener is bottomed out with more than 5-10 lb/ft. Kind of like a built-in torque limiter. It's also very loud for what it is. I don't know if I got a bum one or not. However, sometimes it's the only thing that will work in some situations.
I have numerous other things from Harbor Freight, but have forgotten what they are at the moment. I will say that all the sockets I have bought from there work great, except for the 3/8" deep metric impacts. Those are very thin walled, and crack very easily.