I really do get on well with docpad. Despite wanting to move to a JVM-based static site generator, docpad does too many things to make me want to leave. It's not perfect, but it has plugins to solve mosts of your basic problems, and is nicely hackable. Plus it's written in CoffeScript, which is always a plus. Adding comments to the homepage blog entry was a little tricky though
The services plugin provides a neat way to inject Disqus comment threads into your pages. It's almost no configuration, and works reliably, but it doesn't work when you're rendering dynamic content, for example the latest blog post on your home page.
Everything worked well until Disqus got confused. First it displayed the comments from a blog post on the homepage when it was no longer correct. Then it just started displaying the comment thread on all pages which didn't have their own threads already. Not so good.