Would not depend on this to work when needed.
586102
Save your money and buy yourself a long Craftsman 1/2" breaker bar and appropriate socket for your lug nuts.  This thing is a waste of time and money.  It feels like a toy and is housed in a cheap plastic case. As for the wrench itself, it impacts about every 4 seconds, and makes very little progress in loosening the lug nuts, and the ones that it cannot break loose it chews up instead.  I wanted something that would be dependable if I had to change a tire along the interstate when it was -20 degrees out in a snowstorm.  This is certainly not the kind of quality tool that you could depend on to bail you out in an emergency.
1513108
This worked for a few months (used occasionally).  Would not recommend
3135531
Only had to use it once, but when yu need it you need it bad. Worked for me.
737400
Worked twice,but failed 3rd time... I bought micro switches instead... Would have liked to use this perhaps if it was more reliable... Another option instead of this would be to a metal strip to connect the open wires instead dangerous yes but at least it would work ... This
2959871
this sort-of worked as an adapter to charge my kindle (so it wouldn't bend the cord while watching and charging at the same time) and it charged it EXCEPT that afterwards, my Kindle locked up and wouldn't work until the next day (when the battery had drained a bit??) I wouldn't use this as a charger if your device is expensive... not worth the risk?!
4171826
Works well when you need that sort of item which is not often but when you need it you need it
1392126
Did not work for what we needed it for but that doesn't mean it won't work for what you need it for.
2550280
Used this several  times and found that the power wasn't there.  It's okay but wouldn't recommend it for anything heavy-duty.
4445717
Well the cord got a kink in it and it does not run with a high voltage or low voltage. If I had external connectors it may have worked better but maybe it works to some extent I just didn't have the battery to run it for long hours.
1296004
As many reviewers mentioned, this definitely does not charge phones quickly. There were times where my charge actually went down while using this. And you have to feed it constantly. But it does its job, and if you were in a bind, this could be pretty useful in several ways.
4677514
I had a lot of problems getting this unit to work so I ended up giving it away. I would not buy another one.
3237856
Sometimes it works other times it does not.
2717274
When this thing worked, it was great. I didn't have to do any setup, straight out of the box it worked. But it was so erratic that I didn't know what to do with it.

I'm not the type to just lie down and give up when it doesn't work perfectly right away either. I googled for days, tried any solution that I found but still it would reset itself every couple of days or even several times a day.

I ended up returning this and getting an even cheaper Netgear router and though it required some tinkering to get it setup, it's been working beautifully ever since.
4194806
Before you order this consider Where it will be, because when the power goes off it does not come back on so you Will be without heat if you are not home or you are way and expect it to keep your house or your boat. from freezing  I didn't discover this until I installed it on my boat in Alaska and when the power Went off. And then comes back on, It's just sits there with a little red light until you push the start button and then it defaults to 72, until you reprogram it, what a pain. I do not recommend this heater because it absolutely does not function by itself when there is a power outage and you are relying on the heater from keeping everything from freezing. I can guarantee when you come home everything will be frozen.
4413145
This product didn't preform the task it claims to.
4081129
This worked as long as we kept multiple devices hooked up and POWERED ON all the time. I had to leave my xbox running the whole time I had this hooked up, or I couldn't watch TV. If I shut my xbox off, the TV wouldn't detect that anything was connected. After a while I threw it away and just went back to swapping the HDMI input on my TV. It's less annoying than this thing...
1804272
They work when you really need them but they don't make what should be a simple task (disconnection) easy. I finally went to a different connector because working in the cold was especially difficult fumbling with tool and connector requiring removal of gloves, etc. Even with the tool I struggled. Rating reflects my frustration with a connector that  even needs an auxiliary tool to function. I keep losing the tool.