Have the Weber Q220 for about 3 years. Great great grill, cooks awesome.
Only downside is the single burner. It has pin holes for the flames and not slots. maintenance is an issue when they get plugged up, and they will plug up. You cant use a brush to clean them because it just pushes more debris into the holes. Ive found that the only way to clean them is with a small nail or drill bit and hit every plugged hole and clean it out.
Also the curved bottom seems to collect a lot more drippings than the conventional "square" bodied grill. I find myself having to scrape out the bottom more on this than another grill I have owned. Learned this after a few uses when the entire inside bottom of the grill caught fire. Now after every few grillings, i take a small plastic spatula and scrape the bottom out. not a big deal really, but something you might want to keep an eye on.
With that said, I still love the grill and the way it cooks.
