I've done the same and don't agree. The cs590 is a midrange, farmsaw powerband while the ms362 has all of that midrange and then a topend (chainspeed) that the 590 doesn't. Pro power characteristics in top end and throttle response...I’ve done a comparison of the 590 and ms362 side by side and I think they compare in power and build quality. The ms 362 was a non m- tronic saw and they were both well worn in. I like them both and I think the only thing that puts the 590 in the “farm” class is the spur sprocket, stock bar and chain, and plastic clutch cover, which in reality is every bit as tough as magnesium, just not as heat resistant.
Also, even tho my ms362 (also a non-moronic model) has the two piece flocked air filter maligned by many (there's nothing wrong with it, it seals perfectly when properly mounted) it is still light years ahead of the cheap filter on the cs590. While the cases on the cs590 are beautifully crafted, like the Stihl, the quality of the finish is significantly inferior. The antivibe isn't even in the same universe.The cs590 top cover is not "pro" by any stretch in its mounting system, compared to the Stihl (think losing screws in the field, and repeated disassembly/assembly created wallowed out screw holes). The cs590 is inferior in other ways. It has a right to be, it is half the price and darn good for the money. The strato ms362 is overly complicated, to be sure and a pita to work on to be sure, but it definitely is a better feeling saw, imo. However I think that the echo will prove to have more durable guts in the end. It is simple and effective. The Stihl is a way over-complicated thing with a record of some failures. I will be rid of the ms362 before the echo, as much as it pains me..