I'm not the author nor a contributor to this project, but its been a light in the darkness for me as I use mainly PHP in my dayjob, and I've personally only ever used the Functional Programming faculties, which I find much kinder/more reasonable/more useful than the ones in the standard lib- I actually think the author buries the lead (or at least what I consider the lead) a bit by putting the routing stuff in front of the FP (not to say that also doesn't impress me, it reminds me of phoenix which makes me happy :] )