There's simply nothing better out there to do what this plugin does. It's simple and elegant and, most importantly, gets the job done.
If you're looking to import your entire Flickr library into WordPress, this is a must-use plugin. Thanks so much to Brad for creating it.
Update: I had to update my review after a bit more use. There is one major flaw in the plugin -- it occasionally freezes mid import. This isn't such a big deal, as re-importing is easy. However, no check is made for duplicate posts or images, and so everything is duplicated upon second import.