I received my new Echo CS620PW 27" yesterday and here's what I did and my experience thus far, with a good working knowledge of chainsaws. I read the manual unboxing it and followed correct procedures to assemble, fuel, and oil it. It took about 15 pulls to start. Once started I left it run at idle for about 15 minutes to thoroughly warm it up. I ran the saw no higher than 3/4 throttle off and on through 2 tanks of fuel before my new Oregon chisel cut was in need of sharpening, so I stopped. With bar, chain, fueled and oiled it weighs in at 20 lbs. exactly. As a 69 year old man I find it no harder to run than my Husqvarna 359 that it replaced. Maybe easier as the 27" bar's weight on the front helps it bite into the wood. On this initial run the idle fluctuates, but the saw is reasonably throttle responsive and the saw rips with a sharp chain through 20"+ knotty pine. Next I'll adjust the carburetor for my elevation. I think it's a little rich. Once broken in I expect it to be even more robust. Eight more fuel fills and I'll open her up. One issue that I found isn't an issue is that at idle I was hearing an intermittent high pitched tinkling outside the crankcase. Concerned I tracked down an Echo chainsaw technician and he advised me it's a washer retained by a C-clip on the clutch shaft that must remain loose, but retained. As it's normal and of no consequence, I'm relieved and the proud owner of a real sleeper. With its 5 year warranty this may be the last saw I need to buy. If I was a pro this would be a saw for any work. As a homeowner it's my saw for all my work buckin' my winter firewood. This replaces my 17 year old Husqvarna 359 20" that gave up the ghost. I looked at new Huskys and Stihls before buying the CS620PW and found that with Echo, I got a lot more saw for less money. This is a very high quality professional saw with a full wrap bar. If you're not sure, then check all the YouTube videos and pick one up. It's hard to beat. Heck, a comparable Husqvarna would have been $*** more. I'd go 5