Go for it I bought a 590 3 years ago first thing I did with it was cut 3000 linear ft. of boards from 10 inch logs. Wide open for hours. Auto feed chainsaw mill. Used a 26 inch ripping chain-bar. Still use it for bucking firewood, now. 18 inch bar, jig sharpen only, goes thru a 16 inch maple log no pressure no bog no fixing. Important to clean air filter and or replace - and back flow fuel filter in tank or replace.
Now bought a 21 inch swing blade for boards.
String trimmer, Echo, hundreds of hrs. Big property. Grease head, never fails.
Gotta service every year.
Bought a smaller Echo saw too for limbs.