At first glance this looks good.

One problem is that the word Root is a swear word in at least one english speaking country. I as far as I know anyway. Maybe it's route that's the swear. An Australian will be able to correct me if I'm wrong. But from what I've been told it's worse than f*ck.

Otherwise I like the higher start difficulty and the fewer rewards for early adopters. That should stave off the normal pump and dump crew and might allow the coin to survive.

I would like to see something innovative though. Like maybe a way to have super fast, safe transactions without having any blockchain bloat. I can think of at least two ways that might just work for how to do that. One is having a mini-chain with a few second confirm time that gets reset every block of the main chain. Another is to have some consensus system like ripple. Both would take quite a bit of work to implement, but if they work it would make your coin much better than any other.