Started off buying Stihl and Husky saws for most of my life. Then I bought an Echo 490, then another Echo, and then the Echo battery model. Next one I buy will be a Echo 620. Still own a big Stihl which cuts good but its a bitch to start when cold. So much trouble I usually spray in starting fluid so I don't end up taking a hammer to it. We end up cutting mostly white and red oak up to 24 inches in diameter. The Echos have done such a great job I swore off buying another Stihl. Find a local dealer who is having their annual 20% off sale and give them a call and order what you want.
If the road or trail needs clearing the battery saw is always the first one I pick up. By the time the battery runs out I am ready for a break so we both get recharged at the same time.
