I've had a few McLane edgers over the years. They always went aftre about 2 years due to engine failure. The last McLane I got had the 3.5 Briggs Industrial/commercial, with on/off swith, over sized fuel tank, and larger muffler. This machine has over 3 years on it and starts on the first pull every single day, I highly recommend it. I can edge very good with a string trimmer but it becomes very tiresome to edge with a string trimmer all day, and I can edge at power walking speed with my McLane, which I believe is faster for me.