I must say that I enjoyed the geometry wars taste of the game. I definitely enjoyed having infinite lives and really enjoyed having pretty much all of my favorites songs wrapped into one.
My only fret must be how bored I got. I know the amount of enemies, powerups, and levels were all indeed great. I just wanted something cooler than moving my ship around while holding the fire button. Now controlling two ships at once.... that would have been cool. Version 2, 2 ships =P