I have not. In general there are some really nice cards in the deck. I think it's worth buying just for the Phyrexian Negator.
I have the Jace VS Chandra and Angelic VS Demonic duel decks. The Jace duel decks are very good fun to play against one another, but the angelic duel deck set sucked. The angelic deck had lots of fantastic card, but there were basically no low-cost creatures to cast at the start, and you bascially got pwned by the demonic deck very quickly if played right.
The planechase set just looks weird.