I find it good but not perfect:
The good stuff:
-The ship upgrading system is really fun
-Solid graphics, audio, style, etc...
The flawed stuff:
-Everything seems to pre-scripted: you can only buy what the shop has, rather than having the full unlimited freedom of buying what you want with your money for more customization of your ship
-Near the end you have more money than you can spend, there is something missing, the "awesome but super expensive thing that you really want to save up for"
-The flying and shooting has too little interaction, the arrows are only useful in the very first galaxies