I bought a Green Mountain Grill recently (Daniel Boone) with the pizza oven attachment and it is awesome!
The app control is fantastic and makes smoking effortless. The pizza oven is also top notch and we've really enjoyed using it.
Spoilered for big pics.
I've done pizza, a pork roast, firecracker salmon steaks/scallops and bacon wrapped filet mignon on the grill. Also burgers and veggies.
Can't say enough good things about this grill so far. I love the flavour from cooking with pellets and the build quality is better than I expected. I have yet to do a long smoke with it but it's on the to do list for sure.