I absolutely love the artstyle. It's fantastic, it's flashy, it's a real treat on your eyes.
Now, I am not much of a beat-em-up player, but it felt like it was a bit too slow. Like all attacks took a couple hundred milliseconds longer than they should've. It felt the same for running anims too. Also keyboard controls are not comfortable, but that's already been mentioned.
I don't have anything else to add other than that, but I had a good time. Keep it up!