I suppose if you're some Mine-Sweeper addict and the other 8 Mine-Sweeper clones on MacUpdate don't fit your taste then it's alright.
I couldn't stand the "aqua" value. Tiles sets really should just be bundled with the game, they're only 76k anyway.
Works fine as far as I can tell, but there is no explanation of how the game works: this knowledge is NOT inate. Icons could use some work, and a small audible alert when the game is lost/won would be nice.