Echo makes a great saw for the money, anyone who says different is either ignorant, or so biased it's nausiating.
I love my CS-520 with 20" bar. It always cranks on 1-2 pulls and idles so nice. It's quiet, smooth as silk, and has tons of power for the weight.
I setup a pair of CS-370's for the place my dad works, both purchased from HD for 270 apiece. Both cranked right up when fuel was added, ran perfect with no adjustments. They were actually not too lean to run. The ECHO oil is good, doesnt foul plugs, or clog up the muffler screen. It also has a stabilizer in it already, so your fuel stays fresher, longer.
The Warranty is actually 5 to LIFE.
I downloaded the Warranty overview...
"The 5 year consumer warranty covers the entire unit for 5 years, of non-profit, or residential use. This is a limited warranty.
EXCEPTIONS- The electronic ignition is covered for the LIFE of the machine for PARTS ONLY.
The bar, chain and sprocket are covered from defects in manufacturing for a length of 60 days.
That is a very reasonable warranty.
Better than Stihl, Dolmar, OR Husky.