I've used this four times and it has worked each time.
I saw this show about picking up chicks, and there was this dude that had a seemingly horrible pickup line: "This is so embarrassing, but I almost wore that same outfit tonight". One night I tried it myself and it actually worked. It's not like it gives you an instant lay, but it certainly helps break the ice.
1) The first time I used it I ended up getting a number which later lead to a lay. score!
2) Some friends of mine had a friend that wanted to be introduced to me. I struggled to talk with her on the dance floor and things were going no where, but then I used the pickup line. Got a laugh, we joked around some more, and things were way different. I unfortunately didn't get her number that night.
3) My friend and I were at a club bored as hell and decided to try talking to girls. I had no other strategies, so I used the line again on a girl, started joking/teasing her, then her friends got involved too. Some decently pretty girls were all paying attention to me. It was a neat feeling. Got a number, but that didn't really go anywhere.
4) Used the same line on a girl at a club again. Used it on the friend of a girl I was trying to get with. It just helps lighten things up. got the other girls number, but that didn't go anywhere.
So yeah, I guess the pickup line has helped break the ice, but it doesn't help do much else. You really have to be able to handle your shit after approaching a girl or else things won't go well like for me. Heh heh. Good luck.