This is simply an upgraded replacement to the existing file browser which makes it a "must-have" in my opinion. The only downside is that it doesn't yet "save" (at least not the free version), so you can only load (and copy and delete and rename) existing files.
I also wanted to give a shout-out to the creator JayJayWon for taking some time to help me troubleshoot the plugin when it wasn't showing up.