One change in the GUI has made Opera less friendly for me. It's in the "Mail" panel which Ionly use for the RSS Feed. The new GUI no longer has a feature that allows you to scroll through all the new feeds in the preview pane.
That was a very useful thing, but now all I can do is toggle the feeds accordian style. I have to go through them one by one to deal with them - and that often means lost time and a lot more clicks.