The reason we won't give 5 stars is that we feel strongly that customer service should also matter. Altho this is a free component right now, we are effectively testing it for free and providing feedback that will help the developer. Our experience on the forum was met with untimeliness, rudeness (from another board member) and more complaining. We pay for many components but the attitude we got is that we wanted it all for free, would never pay for anything anyway and were in fact inept. Unacceptable.
Overall, we would recommend FeedGator as a good Joomla addition. Order it without a side of rude and it will enhance your site.