Used, about 4 years. Stopped working in the middle of a tree dropping so I bought a new one to finish the job. Turns out the spool piece connecting the carburetor to the engine was loose. I tightened it up and have run 2 tanks of gas through it and it runs fine. I don't need two chainsaws so the old one is for sale. Chain is relatively new - has not been sharpened, probably should be. Starts reliably. Bar oil tends to leak out slowly when not in use.