Greenworks 40V 16" Brushless Cordless Chainsaw

The Greenworks tool is excellent. Because it is every bit as good as any saw I've owned (Stihl, Husqvarna, Poulan), it is therefore "better". It cuts as effectively, with *as much power*, and for as long as a gas-powered machine of equal size (one 4 AH battery & 1 tank bar oil, will last as long as one tank of 2 cycle & bar oil - about 45 minutes). It is every bit as powerful. It is half the weight. It is comparatively silent. Even the easiest-starting gas-powered machine is more work to prepare/start than this machine. Greenworks is top-quality, and this machine lives up to that standard. I have the Greenworks 40V lawn mower, so I have three batteries and a charger already: three batteries will run this machine for far longer than I can work safely. 2+ hours of non-stop cutting is not what I call 'residential work'. Usually one 4.0AH battery (45 minutes of cutting) is enough - then I have to haul, split and stack the wood. It's a good day's workout.I have read reviews that complain about chain tension (& slipping off the bar). I have read complaints about 'storing bar oil in the chamber'. - "Chain tension". Basic chainsaw procedure has you checking chain tension before, and frequently during, use. As with every saw I've had, after 15-20 minutes, the chain and bar are sufficiently hot as to have caused expansion. You're the one in charge: it's *your* job to monitor and correct that. I have used this machine extensively and I have never had the chain slip off the bar. The chain requires re-tightening no more frequently than any gas-powered machine (usually once/use). Bottom line is - No, this is not a problem if you know how to operate a chainsaw. - "Bar oil leakage": It is *so* simple to use a $4 funnel to pour the un-used oil back into the original container, that I really don't know what to say. Remove the battery, open the chamber, open the bar oil container, put in the funnel, pour. It is *not* "used oil" - the used oil is splattered all over the bar! The oil in the chamber is clean - pour it back and use it next time. This process might possibly take 2:45 to 3:00 minutes, and it protects your $200 machine. What, there's a problem here?! I don't see it.This is the best >$100 purchase I've made in a long time (Well, The Beatles "Abbey Road" re-master box set ,,,,, ;) )