I don't like the navigation, or rather I was used to the previous methods of getting around so those changes I'm not happy about. Even though in the previous iteration the Batch editing was clunky, so zero sum gain I suppose The large thumbnails I'm fine with, I also use Lightroom to manage my images so I use it to upload to Flickr as well as other resources (and it still works fine, also I am a Pro user). I've used iPhoto for this in the past when I used iPhoto...