I recently acquired the Geneses II. I got the three burner with the sear burner and it has been a delight to use. I have owned over 8 Weber grills with a variety of burner configurations from two to 8+ on the Summit. The configuration go the Genesis ii S-335 has been the best achieve a quick cooking temp and with the sear burner, I am able to get to 650 degrees in about 12-14 minutes. The new burner tube design is better than previous as well as the electronic ignition that lights each burner individually - nice touch Weber, I love that part. I chose to assemble myself and it was a breeze. No missing or damaged parts and everything fits like a glove.