I just got an update today that my flight from PHL to ZRH on 6/22 was replaced with a 767-300 from an A330. I had a business class ticket purchased and this was my first trip up front in American's A330 product across the atlantic

I just want to know is this a better plan? Did I get unlucky or lucky about the equipment swap? As far as I know it's the new 767 with the lie-flat seats.