Wordpress is like the love-child of Drupal and Blogger. It's got features of a blog, and it's got features of a content management system. This, in theory, is great! I love the concept. You've got a really nice simple interface with a lot of power under the hood.
In practice, wordpress.com is a steaming pile of whatsit. (If you don't know what whatsit is, you should watch more homestarrunner.com cartoons.)
If you want a multi-page blog with more power, use weebly! (Granted, not open source, but a really nice tool none the less.) If you want to stay open source, just find someone who will give you a little drupal loving.
Wordpress tries to do too much with a blog and ends up being either A: not enough or B: way too much.