What exactly do you need your file manager to do? All I need is some handy buttons and icons to click in order to move around easily. Nautilus even has the ability to go directly to a specific directory by typing it out (with tab completion) and supports browsing remote file systems through a variety of protocols. I recognize my needs are different from the average user's (I actually mostly just use the terminal and xdg-open instead of a file manager). But what features in particular do you think Nautilus is missing?