I have one of these I bought a few months ago and I haven't even tried it yet. I sure hope I don't have any trouble out of it. I sure don't like gun trouble, it's the worst!
I have a stihl that I bought in 1997 or 8 and i've never had the first problem out of it. Never even the first sparkplug change or anything. Every once a year or so I will blow out the air filter. Highly reccomend Stihl products. I have several chainsaws with same reputation.
Also on a side...