just share my own experience,
my daughter had studies 1 year nursery in Kwong Fuk, it is nice, the teachers and principle are nice too. but seems not much home work.
Then N1 i changed to Baptist and my daughter became very dull, very sad. I thought my daughter is quite smart because she is born in Jan and is the elder one in class and she is quite clever indeed, only a bit too shy. So I think this is the matter of school.
I change to Bowie, in the N1 2nd terms, and my daughter becoming very confident and active again. Bowie is quite expensive becoz cannot use gov coupon. In Baptist it was alomost fee. She is in K3 now and her homework is more difficult than 2-3 year before.