I originally purchased my Summit 670 in 2009 because I grill all year round and wanted, specifically, the sear station/infrared burner/outboard burner for sauces.
It's now 2018 and time for a restoration because the burner tubes are aging and not as efficient as they should be. I called Weber, expecting to pay for a new set of tubes and a few other spare parts and they reminded me that my unit is still under warrantee - so they shipped all the parts at no charge! Who does that? They even knew EXACTLY what my unit is after all that time so there were no questions bout which parts were necessary.
WEBER is up there with APPLE both in quality and service (and I am an all-Apple guy too). Their products exceed expectations and are the best and most reliable that I have ever seen or used.