I took my mower in before the 7 day return policy was up. I allowed them to try to fix it before returning it for money back. My grass will not stop growing so i hope they get it back quickly. It was a Honda powered Troy built self propeled mower. It started and ran good the first mow. then started smoking a lot and bogging out. I don't know much about mowers, but the guy at the garden center said it was state of the art. I expected more than 1 mow for $500. Perhaps it was a defect, or it will get repaired soon. I will give them the benifit of the doubt, but will keep posting updates. :|