I've used mezzanine before but ultimately removed it from the code. If you're interested in adding a company blog to your app's domain, it just touches too many things and makes a mess. I use zinnia now http://django-blog-zinnia.com/.
I think mezzanine is a great alternative to wordpress. It makes a great blog if that's all you want. If what you need is a CMS to handle the content side of your app, you may want something a little more flexible/light weight.
RE: Part I get it... It's kind of just like Wordpress, great for blogs and everything else is difficult IMO. The only difference being you can still use Django if you need to. I guess... I don't know enough, just enough to be dangerous. :-)
I think mezzanine is a great alternative to wordpress. It makes a great blog if that's all you want. If what you need is a CMS to handle the content side of your app, you may want something a little more flexible/light weight.