This is about the 4th weber I have purchased. I actually burned out my old 18" that I used for over 20 years.  I alo have a weber gass and a weber smoker- well built products with good features.
My new 18' has some new features that I like. You can get MOST of the ashes out of the grill with the vent closure system.  Eliminates having to tip the whole bowl over to empty it.  The grates fit well and the whole thing seems to close enough to put out those last coals if you want to use them on your next cook.  Just wish they could design a better catch tray for the ashes.