I switched to Nemo after I got tired of Nautilus moving all the buttons for no particular reason every Gnome release, but a few versions ago they had a pattern that was genuinely good: a dropdown next to the current directory in the navigation bar, with everything you can do in the current directory (paste, create directory, open terminal, etc.). This was really neat, traditionally you have to access those by right-clicking some whitespace in the list/grid view, but in the list view there is only a narrow band of empty space to right-click, usually you accidentally click a file. So this was a genuine innovation in UI design. Unfortunately they since removed it again.