Hi there!
I’m trying out Pelican.
I moved to Pelican from Octopress, mostly because I heard good things about Pelican being written in Python, and honestly I hadn’t really done anything in Octopress so there wasn’t any loss at that point.
Pelican, like Octopress, is a static site generator. This means you don’t have to fiddle around with setting up a SQL database and have PHP scripts dynamically generating your content. This can be nice if you don’t want to have to deal with potential security problems with running SQL and PHP on your server. Also, if you don’t have the ability to run those (e.g. you don’t have root privileges to install things on a server), then using a static site generator is a great solution.
Because your blog posts are stored as reStructuredText or Markdown files in the filesystem, you can also use something like git to handle revision control of your website.