please ... if you have never used one before get sometraining... chaisaw accidents are bu nature horific. . .
Stihl or husky are the go.... family members in the wood industry and thats all they use.
do not buy cheaper brands... cheaper quality products in a chainsaw is asking for trouble.
and as PAZ said... keep it sharp... nothing worse than forcing a chainsaw to cut..
I use to build wharfs slipways and boats.. and i have cut a number of boats up with a chainsaw and an axe.