The other nice thing about Hakyll is that it uses Pandoc, so it supports different input and output formats (such as HTML slide generation from Markdown).
Maybe this doesn't matter to most people, but having Pandoc means support for math (e.g. TeX) is standard.
I have a fairly complicated setup at the moment, and yet it still has less than 100 lines of configuration.
Also, being in Haskell, I've found it pretty fast so far despite being written in and configured with a very high-level language.
I'm short, Hakyll is awesome. Much better than my old solution which was a bunch of hacked-together php. (I was using my school's shared Apache server, a don't judge me :P.)
> I'm short, Hakyll is awesome.
I like the optimism in that "maybe" at the beginning of the sentence.