I just updated to Ubuntu 13.10 and greatly dislike Nautilus 3.8 that comes with it. In Ubuntu 13.04 I used the instructions in this article to get back some of the features from Nautilus 3.4, but unfortunately that doesn't work anymore. I particularly miss dividing up the window with F3 to have two folders show at the same time. The new search function I also find pretty terrible.

I checked out Nemo but I would much prefer downgrading to Nautilus 3.4.