Believing the traffic statistics as strong indicator that you
website is making progress is fraught with danger because
any SEO company can manipulated traffic to your website.
They can buy tens of thousands of hits or run programs that
can easily fake visitors. Any traffic statistics requires
detailed analysis, to ensure that it has not been manipulated
with in anyway.
The last page is a suggested questionnaire with a couple trick questions to sort some of the good from the bad.