I also hired a bun bun who worked in HK for more than 6 years. I can say she is very good in all aspects, household cleaning, baby-sitting, child milding, cooking is fair. She does not have those problems as other maids. Of course, being her employer, I also let her have a certain level of authority in terms of teaching my children and she also manages well.
I am glad that I have her with me and she works for me for almost three years now!