Unlike many electrics, this thing has a ton of power, even more than gas-powered. This matters because places a normal chainsaw gets pinched and stops, this one can power through. It also doesn't overheat, doesn't put out fumes, and starts with the touch of a button. It makes you much more efficient.Let me say a bit about batteries- I did use a slightly stronger one than recommended (10ah), not sure if that matters. But it lasted about an hour. In response to the review that needed to change battery every two cuts, mine did two whole trees on one battery, plus a little into a third. These were 30 foot pines with 15-18 inch trunks. I cut off every bough and cut logs into one foot long sections. Again, that's two entire trees on one battery. From my experience, that would be about three tanks of gas. Granted, if you only have one battery and a very big job to do, you'll need to take a lunch break while you charge. I suspect that reviewer may have bad batteries or vastly over-tightened their chain.In response to the review about 69 drive links on the chain, it is true that that is not standard, but the writer VASTLY exaggerates the problem. They are not hard to find. Amazon sells them. I think the reviewer was just in a complaining mood when they found out that the normal 20 inch chain they bought didn't fit. But also, as an environmentally friendly option, don't forget that lots of hardware stores do chain sharpening too!