Complexity: Simple and effective
Learning curve: Fast
Average game time: 10 mins for the battle including bragging to the loser, showing off to your friends and laughing heartily. So you could play that at lunch break in your job.
Originality: Do you know many games where you can strategically bleed on the winner as you die or that you can castrate the enemy?
The only minor flaw I found in this game is that it could use a bit more replability. But with updates coming every so often, and with the "expansions" and all costing less than a trip to the cinema I say it's well worth it. And speaking of the cinema? If the movie sucks you can always ROFL! Charlee Sin.
In my 2 decades in gaming, in this book there's the best D&D fief system I have seen. Not the most realistic but the one more easily implemented. With some adaptions it has become the system I use for years.