Well I finally made a decision today and bought the Stihl FS250 over the Shin and JD trimmers I was considering. I have not had it home an hour yet and already it is bogging down and even quitting. I am only doing some very lite trimming around my house, sidewalk and some edging along my driveway to just try it out. Nothing over 3 or 4 inches tall and not dense. I just spent $500, less than an hour ago, on this machine and it's giving me problems already. I think I am going to take it back first thing in the morning and exchange it or get a refund. I am very surprised that this is happening with a high end Stihl piece or equipment. However, when it does run correctly it just rips the s### out of everything...I like that!