I tried several times, but couldn't complete a single contract.^^' It's quite hard, especially with the time limit (that doesn't allow to think or make any mistake).
Also, while I like that the tutorial is part of the game's system itself, it's kind of confusing. I didn't understand that I was supposed to type it, so I thought it was just gibberish and I was supposed to figure things out myself (which I did, and I admit it was fun). Then actually reading it by typing it was slow and laborious.
I think the mechanics are interesting though. And I appreciated the presentation as well as the humor. Maybe changing the way the time limit works, and making the beginning more forgiving, could make the game less stressful?