So, I've played through the Tutorial, and it went great. I've smashed the Rune Lord easy as soon as I got that 6 on the Amulet.
As the game is divided into two parts, so is my feedback.
For the exploration part, I'm kinda disappointed. I understand it's a tutorial (and I plan to test the first realm really soon), but I didn't feel any sense of exploration. No choice to be made, no impact on the setting. I would have liked some more "role", like having some input on the setting by questions. "What do you see burning on that pyre?" "What is the symbol carved on that amulet?" "What replaces the head of that soldier?". The intro text (with the wake-up, the rune) got me, brought me feelings, images, but the rest of the text was less inspiring. Maybe because I couldn't act on it.
Anyway, as it's a tutorial, I fully understand the way it is, and it managed to bring the different part and guide me through those fights.
For the fight part, I really enjoyed the experience. It's a great tool to understand the game, with a nice progression between the three fights. Kinda easy, but my rolls were good. The feel of the fight is really good and we can sense the change between one enemy and two enemies. Getting a third dice also changed the game, and made it even more tactic. As a fellow designer, I can already see ways to bring fresh ideas, by playing with the dice (combining two is a great idea!), the enemies, the grid...
So far so good, in my mind, and I'll get back to you after playing with the first Realm.