1. I actually felt really engaged! a secondary objective might be a nice optional thing to have, but it's not required in my opinion.
2. All the music and sound effects were perfectly fine, but in future levels a different music track might be fun to have, just so you're not listening to the same thing over and over.
3. Combat feels great, but I honestly forgot I had a counter move. I also didn't know what the meat was below our special bar.
4. I feel like having some actual combos might be a fun way to keep engagement, maybe as unlocks for doing certain things in missions.
5. The difficulty was pretty good in my opinion, maybe a little higher than it should be for a first level type thing.
6. The visuals were very well done, and I love that you could destroy your surroundings, made it very fun to just destroy everything in sight, not just the enemies. I feel like some particle effects are necessary for your special move, not just a sound and your enemies getting really hurt. I also loves the art style of your character and the enemies, really reinforced the Dnd inspiration.
7. It performed wonderfully on my machine, which I expected as my Mac can run some pretty intensive games.
8. I've kinda already put all my suggestions in previous answers, great job!