Since this thread was brought back to the top, I've had my Summit for around 2 months. So far I've had to have the lid handle replaced, gone through 2 Rapidfire vents and a new stainless table. Weber has been great about sending parts, so I have no complaints there. I will be ordering another charcoal grate soon.
I use mine a lot. I added a BBQ Guru and just received the Summit cookbook yesterday (I didn't know they would be sending one). Since getting it, I've only used the gasser once, and haven't touched my other kettles. Already done quite a few ribs and just did my first brisket a couple weeks ago. Smash burgers at least once a week, and I have made some great chicken too. My favorite lump on this grill has been Jealous Devil and I've been going through quite a bit of Kingsford blue too.
However, if I knew then what I know now, I'm not sure I'd buy it. You can see where they cut corners, and at this price point that's unacceptable. I cannot stand the charcoal basket scraping across the painted shelf, the sliding basket should be on bearing slides and it should have come with a built-in temperature controller, a high-end cover, a charcoal tool and a grate tool. Weber should offer owners a $750 rebate, or $750 worth of accessories, IMO.