The app gives the appearance that it imports formats it can't view, leaving you with a useless icon in the library

It struggled with .mpg files, which I consider to be fairly standard (if Quicktime can handle it with less trouble, you're app probably blows)

It's slow to respond, and sometimes completely unresponsive.

If there are problems beyond that, I don't know them, because I was so disgusted I stopped using it almost immediately

I'd say the developer is slightly delusional if he/she thinks they're going to get someone to pay $90 for this without some MAJOR revisions