Gracie Street Defense for women - Effective or Useless?

[Dylan Ehrnreiter]

I bought the DVD set for my wife and it seems pretty legit. They've got a couple hair release techniques in it, but the main bulk of it is low level/high percentage stuff for beginners and people who don't train regularly.

I train with a Krav instructor, and they do a TON of hair pull moves. I've never had to learn them though...