I have mixed feelings about this one.

The bad: The mechanics are incredibly simple, there is no strategy to it, mainly you buy the cheapest upgrades you can buy since the others tend to be very expensive. The player can be replaced by a simple AI script that buys the cheapest upgrades and you wouldn't even notice it.

The good: -Decent (but simple) graphics. -Satisfying gameplay -I can't say I didn't have decent fun (despite all this) for those 10 minutes I played.

So it's a good base to build something else, but so far it's just a tech demo.