The agency itself is a pain to deal with and take a lot of commission from the nannies. Their herbal package is also over priced. But if you know of a nanny that is good, and no choice have to engage through PEM, then bopian.
In any case I just finished my Confinement with Aunty Kim Lan. She's not engaged through agency. She's so good that we extended her second month, my baby turned 2 months two days ago. You can contact her at +60 16 666 9594 or +65 9890 7889