The concept is nice, but it's quite difficult at the moment because the game is too fast-paced. I think the game will be easier and more enjoyable if the pace is closer to real life.
Oh yeah, it's way to hard right now, even for me. My initial balance came from when I had all 4 slots enabled, and last-minute bugfixing caused me to run out of time to rebalance. *facepalm*
