What is the SEO Meter?

Lots of the peoples are discussing the SEO Meter Can any one explain that what is SEO Meter and How can we use it for the SEO purposes.

While I have found of the SEOMeter.net Which is offering various SEO tools. Have anyone tried this?
Is it reliable for use?
Review it please.

Yeah i checked that too.
It doesn't shows the domain authority of a site.
It shows only the site value and some IP details and alexa rank.
So IMO it has to be improve their options to show the details of the site.