I think there may have been a post here about it, as an investment the shares don't look to be worth it, they appear to be valued at the price brewdog expects to be worth in about 3-5 years time and that's after some fairly optimistic growth assumptions, (don't get me wrong these boys have been growing very rapidly but past performance....)
The shares are worth it if you live near one of their bars and get the discounts that attach to ownership of a share. Other than that I wouldn't be bothered.
Edit: link to original post:
[url:329zf1w8]http://www.beoir.org/community/viewtopic.php?f=12&t=6839&hilit=brewdog+share+issue[/url:329zf1w8]