We use Stihl for our k12's and our chainsaws. It's the only thing I've ever used so I dont have much to compare them too but just the same, I dont have any complaints. When I first got out of high school, I worked for a tree service company and we used all Stihl. I've never had any problems with them
Bryan, we have both. The Partner saw is a piece of crap. The belt driven idea dosnt cut it (pun intended).
The Stihl saw cuts what ever you put in front of it. Same with the Huskvarna Saw. It is also imperative to have the right blade or appropriate cutting edge or you can have the best saw and be un-successful. Sawzall also will do the trick for you in most applications.