I didn't download it, but I can already tell I wouldn't like it from the animated GIF.
- It's too fast. I know that fast is what you're going for, and I know that some people like fast, but it just makes me feel dizzy.
- The environment looks boring and artificial and not at all like what I'd imagine a gnome underworld to look like. Yes, I realize that it's all placeholder graphics, but I can only judge what I can see.
I play fps games for the environments and the environmental storytelling. Not so much for the combat, and especially not for combat that's so fast that you don't have time to think and strategize.
I'm not saying it's a bad game, but it's not for me.