DH is thinking about one of these. Has anyone used them extensively? Ease of use? Effectiveness? How much can you cut before resharpening? Is there a better option? Pros & cons. He has 3-4 chainsaws some bigger/better than others. The best one is a Husquavarna. We are bidding on some property that has alot of fir and were hoping to make outbuildings and barn using the trees that are there. Our experience level is cutting and splitting hardwood for heat about 6 cord a year.