My baby born in Prince Wales Hospital last December as I live in Shatin. I can give 90 mark to this hospital. Nurse and 助産士 are excellent, they are nice and professional. Waiting time for 産前檢査 is even shorter than that of in private clinic.
Luckily, I stayed in 1st class ward as my husband is a civil servant. (2nd class was full at that time). But, I think the quality of common ward must be acceptable, too.