We bought the Prestige 500 gas bbq in 2013 & just recently needed to replace the cast iron grills & manifold.   Napoleon stood by their 10 yr. warranty & replaced all of these parts.   This is only the 2nd bbq (1st one was Napoleon - propane) that we have purchased since we have been married - 29 yrs. ago.   We would never purchase any other bbq brand other than Napoleon.  We absolutely love them.