Summary:
This is a good saw for the money, especially if you are just using it to clean up around your yard. I haven't used it long enough to know if it can handle long days but for the price and being a Stihl you can't go wrong. I had a friend using a cheaper saw and had alot of problems with it and I just kept on cutting while he was trying to get his working again, it goes to show that you do get what you pay for.

Strengths:
Great power for the size of saw. i have a 14 inch blade on this and it gets right through and small trees. I have a large Husky to take down the big trees but then use this to limb the tree and cut up the samll stuff. It is so light I can flick it around and it doesn't snap back at you when you make a mistake or do something a little careless.

Weaknesses:
Not a big fan of having to hold down the throttle to start the saw.

Summary:
if i bought again, id go w/ the 180, but i have used this saw for 4 years with very little repair needed. mostly light limbs cut on grounded trees. however, i would not attempt to use for trees larger than about 4", the extra 2cc's and QCA would be worth it on the 180.

Strengths:
fast chain speed, low weight

Weaknesses:
not much reach, even with the 16"