I love how easy it is to use, just start with an account (which you can free), then create your feed sources that are supported by super feeder! You have many options here, but if there's something missing please let me know so we'll try our best to add this feature soon :) The only thing about SFE which sometimes annoys me is when some of my subscribed sites don't update their articles as quickly/often enough compared to others - like blogs from smaller news outlets who often lack resources available at large media companies.
But overall everything works fine even though they're not always updated right away. Try out different combinations of features before deciding what will work well within your specific needs. It makes adding multiple websites very simple since all you need to do once setup each source site separately instead of having one place where you.