If you want to keep track of your site performance or if you manage a number of sites, this is without doubt a must-have application.
The interface is very easy to use and is intuitive. I have set this up on 17 sites on different CMS platforms and it works every time. The data is accurate, I verified it against other platforms that I had running on my server, and the results are easy to interpret.
Based on the package features and the price I would give this 10 Tacos if I could.