my son goes to LOK YUK KINDERGARTEN. it is not international, it is local chinese but there are quite a few international students and mixed kids that go there. they are very used to having western kids in classes. my son LOVES it there! he's made lots of great friends. his teachers have been very friendly and always willing to have a chat. they teach mostly in chinese but there are some classes in english.
if you have a HKID card, you can apply to the edb for a gov't voucher. when you receive it, the fees at this school are only $160/month for a half-day class.
my son never felt any pressure about interviews or anything. it is a very friendly and welcoming school. (or so i've found).