This place rocks! Talk about taking advantage of Phoenix weather! The only thing "inside" about this place is where you order your food. But that is all served "to go" style in a basket as you'll be eating it on one of the many outdoor benches. Or maybe while sitting around a camp fire. Their burgers are really quite good - though it could just be the open air that adds to the flavor. It's awesome to sit up here when the weather is good, buy a package of their marshmallows and do them up over the fire. And did I mention you can do that with a beer in hand?
To me this feels like someone is having an awesome catered party in their backyard. It's so comfortable and laid back it's always a good time. It can be interesting to find for sure - but you'll have a great time once you're there.