Hey I really enjoyed this game but I will say that I found myself already easily overpowered without putting much investment into the game. With the basic jumper and only a few out-of-game upgrades, I was able to clear all the waves with the basic pulse rounds, rocket launcher, and a rejuventation totem. There were a few times where I was able to stand still for a good portion of time in the last few waves.
I certainly understand this is a demo so I'm sure the difficulty curve will be taken care of as more content gets added. But like I said, I really enjoyed this! I like just how many monsters there are and the fact that even though I'm getting stronger and faster, I always feel like the swarm is right next to me. It provides a good feeling of suspense.