It's honestly amazing how much mechanical depth that you guys managed to fit into so little space. I come from 5e, and really the core parts of the D&D experience are still basically intact, but the 5e phb is 300 pages, while this is just 17. And the art is good to, so that's a plus.
I haven't played this yet, but just reading it was eye-opening for what's possible in game design.