Colnago C50 Pista.

Colnago C50 track frame, has any forum member bought one of these frames? I was wondering what the difference in stiffness and ride was compared to the Colnago Dream aluminium track frame I currently ride.
Second question, I am going to China soon and have been asked to buy a Giant top of the range carbon road frame for a friend as they are very much cheaper there. Has anyone bought a Giant in China? and if so where is their main showroom in Beijing and Shanghai. Thanks guys for any help you can give.