2 of 3 people found the following review helpful.

Awesome When It Works.

I got the GB40 as a Christmas gift last year (hasn't been a year yet), used it a hand full of times and it stopped working, won't hold a charge at all. It was amazing when it worked, but it randomly died and since there's only a 1 year warranty on it, according to my serial number on my unit, it's past the year but I haven't had it for a year, so good times there. Customer service was decent, took longer then was told to get a response, but they were super nice about helping me buy another one. They aren't crazy expensive, so I'd try buying another one. They deserve at least a second chance, especially after the GB40 has gotten me out of some pretty tough spots, stuck with a dead battery, started right up. Saved the day, when it worked. Thank you.

Yes, I recommend this product.