You can filters or sort with a CollectionViewSource.
I avoid them in favor of direct binding when ever I can.
With something like ObservableCollection or INotify it does not always get picked up by the view.
I have had cases where even when I refreshed the view it did not come thru.
I am not saying don't use CollectionViewSource but only use it when you need it.
Before I get attacked I am sure lots of people have never had a problem with CollectionViewSource.