Has anyone bought the iRO guides from Guidefox.com yet?

I'm curious about these. I went to thier site, and it seems that they're selling e-books about RO for about 20 bucks. You might see them listed to the right. Has anybody actually bought one of these? I was thinking about buying the Zeny making guide (even though I'm perfectly good at that already) for fun. Comments please?
Thanks.

-Yamaki

(P.S. -- Peace-a-Pizza has the BEST pizza evar!)