It's a high paced fps in general. The original mode is semi roguelite, meaning, you have to go every 10 floors in order to get a checkpoint. If you don't, back to the previous checkpoint and get different perks for the run.

For me the whole cyberpunk esque thing about it sold me. And is also a quite unusual sort of shooter.

Only a tad short, that is my biggest complaint (but price does match the time so I can't say much)