I am considering buying the tape of my comp. I assume it will be helpful after I get over the initial shock. Eeek! Kind of scary to think about!
A piece of advice, though. The first time you watch the tape make sure to force yourself not to "notice" anything negative until you have noticed and made note of at least 3 things that you like about your performance. That will put the whole experience in a positive light, even if you later see 413 things that you did wrong, or know that you could have done better.