You asking about a CS pellet smoker or a CS char broiler?
I'm a FEC 100 owner and not a CS Char broiler owner, thus maybe not entirely qualified to advise you. However, what prompted my reply is that I have been somewhat familiar with the Aztec unit for some time now. A few years back I started looking for a char broiler that used pellets, not whole logs or charcoal like the Aztec unit. Never could find what I was interested in until CS came out with theirs.
I don't care how great the Aztec is made, there's no way I would get any kind of unit over something pellet fed. Pellets have too many advantages. As soon as CS came out with their char broiler a friend called and asked what he should buy. Answer was easy and he bought the CS unit. It will also be my next char broiler purchase.
You need to find someone who has a unit and see first-hand. In fact, all the units and really compare.
FYI, there are pellet usage numbers right in the CS website, and they don't mislead.