My old MES 40 finally gave up the ghost (while cooking 4 butts by the way)! She has worked well for the last 6 years and I have drug it all over the country for work. Broke down and bought the new 40" from Sam's today with the blue tooth. Hope it works as good. I've read some people has had a hard time keeping the amazing smoker burning in the new one. The raised lags and wheels are really a nice idea. Good bye old girl. Welcome to the family. Just couldn't go with out one. The 250 Bubba is just not practical for small family cooks.