The checkboxes for me (latest version of Chrome on Mac) are a bit dodgy and sometimes won't check/uncheck. Also, there's nothing more infuriating than getting the checkboxes how I want them, pressing submit and then it wiping out my changes and shaking an error message at me.

It took me a while to realise I had to select 6 starred sources, why do you wipe out my choices just to tell me I forgot to pick 6? Very annoying. If you refresh the page too it throws a server error.

Good product, definitely needs polish.