Until 2015 me and my two brothers (all chainsaw guys) believed Sthil was "THE" saw..BUT i'm the rebel and I bought a Echo cs590. A brother bought a Sthil 391 and we cut up like brothers do when they are NOT fighting..(well we do at times, ha ha.) So my Echo kept right up with the Sthil 391 bucking a huge oak..The difference in the two saws mostly seemed to be more plastic on the Echo..Baby brother then had to out do me and bought a Echo cs620P..Of course it has a RIM drive and that hurt me real bad.. I limped around a long time just waiting to wear the Spur gear out on the 590 so I could replace it with a Proper drive..BUT,, even then the 590 in my (smarter more experienced hands. grin) kept right up with the cs620..BUT in the back of my mind I heard, "You ain't got no Rim Drive"..Cain and Able came to mind but I tried to play like I was not real pizzed..I called the Echo dealer and he saw a hot dog and tried to eat my lunch 100 bucks, you gotta be kidding.. SO,, I suffered silently for years.. THEN,, recently, I found an after market clutch drum and rim drive with free bearing on Ebay. Shipping, tax and all just under 30 bucks..Thinking, what's 30 bucks I ordered it.. Supposedly it's going to arrive soon and we shall see if it's like my X wife. Making promises that can't be kept or like my current girl friend, Exciting and fulfilling..ONLY time will tell..BUT do I like the 590? Ask my collection of Sthil saws..The 029, 026, 024, never get taken out of the shop.. They sit and stare angrily at the smiling Echo collection..There are a few Poland saws that hide in shame..But that's another story..Like I told my grandson about Border Collies.. I think you will be happy if you do get one..only in your case it's a Saw not a dog.. BOTH ways both of you should be happy for a long time..The saw should out live any dog..So what are you waiting on..? Ask honey for the check book and head out to the store.. Good luck.