I've been playing this and it's not that bad. In fact, there is a lot of aesthetic charm from the immobile pieces. Imagine taking a Warhammer model or a plastic D&D figure and just playing with them in a mock-fight like most of us did with our toys as kids. Like having them attack just snaps the model shoulder-first towards the target. There are some "choose your own adventure" choices but so far I haven't seen them offer much change.
From what I can tell there is no way (at least so far) to sell off un-used items. On the flip-side, it looks like every weapon and piece of armour appears on your character. Using the stylus (or the little joystick) you pick up the dice, rattle them, and then toss them. If you just try to pick them up and drop them, it won't let you. The game introduces new concepts to you as you go along, and allows you to re-watch tutorials, so that's always a plus.
And you'll either love or hate the omission of a narrator for the DM.