I like it.
It's a good game and all, but a few bugs need to be worked out.
-Super enemies are immune to the slowing effect.
-Charging turrets can't target warping enemies.
-Not enough cash late-game.
-QQ max stats. (This is just a personal issue)
-Personally I'd like a more twisty path, lots of empty turret spaces even later on in the game.
The game itself is fairly simple and entertaining, so overall it's great.
Hint: Put 2 rail guns at the end of the first stretch. Kills half your enemies quickly unless it isn't powered up enough. Slow things down for a repeat effect.