I traded my S21ESR for George's (GTP's) R7270. I like this mower. Has BBC and is push. I got a rear bag with it too. This R7270 is like new! It needs some carb work, and the mower needs cleaned up more. Another thing is that a part on the handle is broke. A part necessary to engage the blade. Oh well, it seems like it'll be a nice project. I got it to fire and run for a couple seconds already, so that's a good sign. It has good compression too.