Used in combination with CentOS 7 and PHP7 as well as Debian 8.2 with PHP7 this addon is simply incredible. It should be included in the XF source since redis is a pretty much fool-proof method of caching non-important data.
When its working, than it brings a better page load in feeling and benchmarks. Installation from Redis Server its a litle bit tricky, but when it works with this addon it works like a charm. Thanks Xon. :)