There was no new functionality in 2013 useful to me so I ended up going back to an old version just because of the new UI. The layout is fine. I've always liked

There was no new functionality in 2013 useful to me so I ended up going back to an old version just because of the new UI. The layout is fine. I've always liked the ribbon UI. The problem is the entire UI is this block of whiteness dotted with icons. I had a very difficult time finding items that hadn't even moved much or at all. I never realized before this just how important the 3D-ish look of buttons/toolbars/etc was to me. The whole flat UI look isn't working well for me at all.