I have both as well now. I will say that the Zillion is $100 more and well worth the extra money. It blows my 50 and old 200e7 out of the water by a long shot. I thought my 50 was really smooth until today. The Zillion feels like greased glass on glass.
I believe that for $90-$120 the Curado is an amazing reel, but I would never pay full price for one. Actually I will never own a Curado 200 again, most likely. They are awesome reels for the price, though.