And through the wonders of the internet, I give you his response, he's a good lad:
"My friend has an earlier version, so the newer ones might have some differences (probably for the better). His is good, and i'd definitely recommend it. It's pretty much a proper wood-fired pizza oven but is portable. Cooks pizzas in 1-2 minutes, making a nice crust on top and on the bottom. The fire at the back passes right over the pizza to get to the chimney at the front, so the tops get cooked very well. There is a learning curve though, so you can expect to burn parts of your pizza from time to time as you learn (or not cook it as well if you fail to keep the temperature up). The pellets are at the back, so you need to take the pizza out as you're cooking and turn it to cook it evenly. The metal peels can get sticky if you don't use enough flour, but when you use enough, the flour transfers to the uuni and burns between pizzas (so you need to figure out a way around that). The one he has is a little small, which isn't a huge problem (and i think the newer ones are bigger), but it limits the pizzas to 7-8 inches. So yeah, it needs close attention as you cook it, but still a great little toy. "
