Nothing on the front page of the website says beta. It's only when I get to the step of my book being created that I have multiple timeouts and I need to refresh multiple times. In fact, the page even has in bold:

"We're having some occasional time-outs; until we crack that, if the information takes longer than a minute or two to come up, just refresh this page."

I think this is poor user experience, and not having the site clearly marked as beta may give users undue expectations. Not trying to be too harsh, but I have spent five minutes and haven't seen even the TOC of my personalized travel guide.