I have actually been wanting to buy one of these for years. It was one of those items I didn't really need because I have a full set of sockets. But there is something being said for having a single socket in your pocket that can be used on any bolt. I used this yesterday while fixing some doors on my shed. I was able to go from bold to bolt and loosen and tighten them without any issue.
It also seems like it's well made. Time will tell if it falls apart, but it feels solid and I think it's sturdy enough to last a long time.
This universal socket is awesome. Instead of having to go through my whole set to find the right one, I was able to seat this perfectly on the screw and extract it. What a time saver and it worked really well!
I use this only as a home tool as needed, but for that it works excellently. It hasn't rusted or been damaged or fallen apart. The bit that keeps it attached to the wrench is very tight, so it doesn't fall off.
The only downside is if the bolt is very tight, or rusted in place, etc. the bolt will sort of get wedged between the individual pins while tightening/removingand be a huge pain to dislodge. I assume that's a problem with any universal key, but I haven't used others, so can't say for sure. So if you can afford a good socket key set, I would recommend that, and have this as a backup.
Overall excellent product so far.
Often times you have no idea what bolt heads you're going to encounter and dragging along a full set of sockets is a pain. Now this travels with the cordless drill set for use on the impact wrench. For a general task it's just the thing. I'm sure it's size could be an issue in more detailed work like automotive or boat work. But for general needs it's very handy. I disassembled a sectional sofa last week and used it on four different bolt heads. Didn't have to bring a socket set or size up the bolts and gather sockets that might be in the ballpark. Love it. Extension has a little wobble built in by design I assume. Helps for when you don't have the head quite centered and the drill moves about. I'm guessing that anything my cordless can drive, won't break this thing. Wouldn't want to try breaking a rusted bolt with it though. If a breaker bar is out, go get a socket.
I just had to buy one of these for my workbench. I know I have had bad days where I could not find the right size wrench when I know I have several of them. Now I don't have to worry about it. I can just pick this up from my workbench and finish the job.