I've been using these chains for 16 years and roughly 200 cords of hardwood. They last a long time if they're getting plenty of barlube. My poulan would burn these chains out due to lack of lube flow, saws fault not the chain. On my Echo these chains last a long time, small saw, lots of lube. On my Husky these chains last pretty well, fairly big high rpm saw, rips like crazy with a new or just sharpened chain. You people trashing the chain because it's the wrong one; well I don't find that the chains fault. When you get the right one, save the label so you remember what to order. These resharpen easily, and I like to do a quick sharpening before a fairly serious day is coming up.