My experience of Doctor Choi Chi Keung is quite good. He takes time to listen and does not prescribe anti-botic freely. When he has to prescribe anti-botics he always explain why (e.g. the child has been sick for a long while and he fear infection of the chest or something if delay treatment)
My daughter used to attend one in the club house. I cannot say that it is very good but it is convenience. She attended for 2 months and moved on to Baby Buddies in Tin Hau. It was good and not too expensive. But the journey was not convenience. I am also looking for English playgroup for my son who is 16 months now. Perhaps we can organise something .....?