I typically don't like top-down shooters, but I did enjoy this one!
I really like how the stage is vast, so your character can keep running and gunning without really worrying about being trapped in a corner. I also found myself often taking advantage of the terrain and choke points to defeat hordes of enemies, which felt really satisfying!
I never felt in danger of losing health, thanks to all the space to run away, and the enemies not dealing much damage per hit. My main point of feedback is the gameplay did start to feel same-y after a while of playing, so introducing new elements (i.e., new enemies, different objectives, etc.) over time to spice things up / change up the optimal strategy of playing would be nice.
Overall, great job with this one!