The Aurora Pipe card (now superceeded by the Fuse X) I have tested extensively, and although it's more expensive, it is actually better than the Miglia Alchemy TV DVR card. The only real benefits from the Miglia card are a) it's cheap and b) you can put two cards in one Mac - usually you have to do something like a Decklink and a Miglia/Alchemy to get two cards working.

Hugh