I sent mine to Ubi...they say idling RPM too high...so tune for me...now slightly better. I asked anything wrong with Rotor...they say no..cos if got, when driving, the car will vibrate too..well, I just accept it 
When car is in motion, there is no contact with the brake rotor, and the vibration felt when you brake could be due to the uneven brake rotor which causes the vibration when the brake pads are in contact with it.
I am truely disapointed with Tan Chong's assessment.
Bilancia is correct in his diagnosis.