My Q100 rocks. I never thought I would use it as much as I do. Its my go-to for rushed evening cooks when I don't have the time/attention span for charcoal. I had always wanted an older Genesis, but I talk myself out of it every time. My favorite thing to cook on it is peppers and onions. I chop them up thick, season them with spices and oil, then just toss them directly on the grate with the burner cranked on high. I shuffle things around every few minutes, but it couldn't get any easier. I usually wait till they are almost done, and then toss on whatever meat is going with them . It works awesome for fajita night. I have also removed the lid and grate to use it as a base for my hand hammered WOK. That also works great for cooking, but I need to find a better way to secure the WOK from rocking. I'm thinking about modifying an old 18" cooking grate to do that.
You should see if you can get a set of the flip out side tables for yours. They aren't super sturdy (I wouldn't trust putting cast iron on them), but work perfect for holding plates, sauces, and such.