Found this to use with our church's outdoor music team to power the sound equipment. Bought it because it is very, very quiet. Have had it for many years now, but not used that much or that often. Had been almost faultless, even the stock Chinese battery that came with it lasted for several years. I would give it a better rating but at this time I have to repair it, no spark and it is true I am finding, that one has to totally dismantle it, and I mean totally, to get to the coil. In fact that is how I stumbled upon this site, trying to find some more info on how to do this by myself because support is rare for these. You can find parts if you look long enough. The support and parts is something I would have liked to know before I got it. If I would have found this site before my recent problem I would have easily given it five stars and recommended it to everyone. At this time, a bit frustrated.