Hi,
I have 2 boys. 1 is 4 years old and 1 is 1 years old. I engaged Dr. Wan for both birth (natural birth). He is experienced, and professional, really fast and reliable during labouring. The type of doctor you will trust when you have an urgency.
The negative side is, he do have a lot of patients. Hence, he won't spend too much time with you during each of the visit and even after giving birth.
Also, a bit expensive when you compare with other doctors....