This thing felled a tree, and survived two hours of cutting it up.It is eerie quiet.It is a little bit weak on the power side, but it compensates by making it possible to saw for 120 minutes without hearing protection.I got this thing to ride in my Jeep, because trees blow down left and right, and I don't want to ride with evaporating gasoline in my driving space.I got excited about this thing after it exceeded every one of my expectations. This is the answer to gasoline fumes, to 2-cycle oil, to paying premium prices for conventional gasoline.This saw is going to ride in my Jeep. I'm going to carry the saw, some extra bar and chain oil, and an extra chain. The rest is batteries and patience.I wouldn't trade this battery-powered saw for an entire cherry picker truck, and a whole crew to use it.