We use our RoadTrip all the time at home now. I don't think I'll ever go back to charcoal. I just love being able to sautee veggies on a griddle while grilling meat right next to it. And the tops fit right in the dishwasher.
It can be used with full-sized or portable canisters, and can also be used for camping, so it's double useful.
They might even be on sale right now, since it's post season.
Here's one on CraigsList:
http://orangecounty.craigslist.org/spo/909100449.html