Ncache: a web cache system base on nginx. faster and more efficient than squid

There are many caching proxies "faster and more efficient than Squid". But, none do all that Squid can do. Much like there are many web servers that are faster and more efficient than Apache...and yet Apache remains the worlds most popular web server. (Yes, there is room for others, and performance is a niche that needs to be served, but the dominant player also has to have a very large feature set in order to answer the needs of a very large range of users.)

Also, there is an industry standard tool for testing performance of web caching servers called polygraph (written by two of the founding Squid developers), and ncache seems to have not been tested with that tool. Micro-benchmarks are almost always misleading.

Disclaimer: I was a core Squid developer for several years, and consider many current Squid developers good friends. But, I don't think that invalidates my assertions.

Where is the evidence that it is "faster and more efficient than squid"?