I looked at a number of other sites using it [0] and found it was very easy to use. I don't go too far into things though, just really interested in hits, uniq, referers etc.

[0] https://www.google.com.au/search?q=inurl%3Astats+inurl%3Adas...

Not the answer to your question, but tangentially related: it is ran by a HN solo founder; @dangrossman.

https://news.ycombinator.com/item?id=7367631