My 11 month old Honda HRR2168VKA mower made a screeching noise when engaging self propel, then shortly after the self propel was not working. Examined the underside & discovered the belt was intact, but had slipped off the pulley. Since mower is still under warranty, took it to the store where purchased. Backlog of repairs so it could be up to two weeks to fix & return. Is this common with this mower? Is the transmission not good on this model? I researched new mowers & it came down to Honda or Toro. Hopefully this is a one-time incident & I won't regret buying this mower.