Karan offers constant improvements on a very good product. You cannot go wrong with this purchase if you intend and need to aggregate any content and publish/share it.
One thing missing – but Karan said it is possible – is a widget to display the RSS (a third-party RSS reader is for now needed to do so). I would personally prefer to have a way to display a collection on my membership site without the use of another product..like Powr, etc.
That said, you can simply share your collection with anyone by adding their emails (students, teammates, etc.).
Overall this is clearly worth the money!