I wouldn't know from personal experience. Just every website I've been to has said the same thing. PZBs (or E. Campestratus) are the most docile T. I've only ever seen one bite report from them and the guy said it was a dry bite and not at all very painful, (I think the T thought it was going to fall... something like that) so keep that in mind. I'd have to find it again to know for sure.
I definitely want one. They are very beautiful and Captiveinverts.com is supposed to have some very soon. ^_^ Personally, I can't wait. HTH!