Visually, everything worked together really well. You can distinguish objects easily and the UI is also simple and functional. The only exceptions were the objective and how to heal, which were both found out by coincidence.
Moving via the mouse was a little painful as I couldn't easily stop my character or turn quickly, it worked smoothly and without bugs but I'd personally prefer the control of WASD while pointing attacks with the mouse. The time slow mechanic was neat but freezing the camera in place felt bad.
Enemies and projectiles functioned well except some attacks would travel from far off screen. Having enemies disable when they're a certain distance away would work well here.
The banter on the side of the screen was nice and overall the game had a very comfy and wholesome vibe to it.