get what you pay for at the big box stores. I've bought all Stihl equipment for a few years now, and wish I had started buying them a long time ago. Same goes for mowers, buy one that's Honda powered and forget about it. Just keep some stabilizer in all your stored gas and rotate through it. I keep ~15 gals of stabilized gas on hand for fueling generators and gas powered equipment. If the fuel hasn't been used in 18 months or so I'll put it in my truck tank and refill the gas cans.