Ranger is pretty nice to work with as far as TUIs are concerned -- bulk rename, N-split panes, tabs, image previews... it does a lot, and the default view is surprisingly usable to look for a file.

The only thing I miss with it is a "goto" shortcut, à la vim sneak. Ironically, Dolphin or Explorer go to a file when you start typing its name. Don't get me started on GNOME searching files.