When I started I was impressed because few people can pull off the FPS concept in flash. Then I started playing and my opinion improved. When I was done I noticed it was only 75K I nearly pissed myself. I thought the Wink 99K movie was impressive, but you really give it a run for it's money.
As for flaws, it's annoying how you have to move in a direction to shoot that way. It made some parts pretty hard. The other thing is maybe split it up into parts. I was doing really well than I got to the upward bridges part and I fell and died and had to start over.
Still on my top ten games list, though