The GigaBlast Site Search - Anyone Tried it?


So i've been hearing a lot about the Gigablast site search since they launched it and just spotted a post by a recent aquaintance of mine, David Tebbutt, who has installed it on his site with the purpose of searching all his sites.

I tried a couple of queries and was not so impressed when one I was certain wouldn't return much actually returned plenty. Plenty of crap results but when i searched for his product, Brainstorm it seemed very good.

Has anyone tried it, and if so, what do you think?