Ring Flash

Has anyone tried these:
http://www.diy-lighting-kits.com/ring-flash/

It looks pretty easy to use, portable and cheap.
Before buying something that doesn't work, I've figured I'd ask the community.

Don't forget the elastic kit too!

I noticed that and was tempted.


I tried another diy one using two plastic bowls, not really worth the effort, but im going to try to modify it a bit more to see if I can get the look im going for.