2013 model, no problems with the Auto-tune. Only has about 10 tanks through it. 163 compression, runs excellent. One chain slip caused the guard to get gouged a bit and has a small dent in the muffler. Includes new Husqvarna Powermatch bar, and a used but good condition Oregon Pro-lite bar, 2 Husqvarna .050 3/8 LPX chisel chains (1 new) , extra air filter. $500 shipped.