I've been experimenting with Plagger for creating a personal planet sort of thing. It works pretty well. It seems very flexible but it is hard to figure out how to really take advantage of all the options and "plugability". For example, I wanted to change the title of some of the individual feeds. Eventually I figured out that if you use the explicit method of defining a feed, rather than the typical url only shortcut, you can specify the title. Like this:
- url: http://rss.whatever...
title: This is a title
I'm also finding that even though lots of sites give you feeds, they are not always very good. Netflix gives you feeds of the DVDs you are watching but rather than giving you a pubdate tag, they put the date in the description. Now I'll have to see if I can use Plagger to fix it.