To complete my first impressions, this is what i think about my build.
With yishun rims GRL40c and 30c gp5000, the bike has a smooth feeling. Very composed when fast riding but also liveable when easy cruising.
Nevertheless as a carbon "race" bike it's not for bad roads with potholes, cracks, vertically stiff and not absorbing shocks, you have to watch where you put the wheels.
To me rear end seems locked resulting in a very good power transfert. But it's not giving me the explosive feeling of a bow you charge and boom, it's more neutral "ok i'm already at this speed".
I have no problem climbing with it, it goes very well. I'm suprised to get a light feeling under the pedal.
On the downhills it's fast and confident.
As a conclusion, considering it's the cheapest frame in spcycle store and in the market, it's a very very good surprise.