I got a score of 8283 which I think is pretty good for a first try. :D The music really, really adds to the atmosphere of the game and elevates the feel of flying around in space shooting rocks to collect their precious resources.
It's very fun perhaps because the core game play is so simple, and all the shop upgrades are a fantastic way to give the player incentive. I find the font really hard to read, though, so I wasn't always sure if I had enough cash to buy something.