These small or first time publisher projects are the ones that appeal the most to me. It seems like you can get really make their dream projects come true through kickstarter. This one is a heavily modified version of D20 with a campaign setting, all meant to provide a gritty low fantasy version game experience.
It seems they have stripped D20 into a classless and levelless system that allows for characters to grow into most any concept. I am interested in this growing your character as you choose idea, that sounds weird and overpowered but interesting. Anything that can make the players feel integrated into the story instead of the character is good.
There is a sweet spot funding level at 20 GBP that gets you the books in digital form and some modules that looks like the best investment, on the cheap. 60 GBP will get you the books in printed form but that is over 70$ US and probably wife enraging for me.