Any comments on Yew Chung Primary and Secondary School

My son is studying in Nursery in Yew Chung, we need to decide where to study for K1, either in YC or others. Any parents know the situation in her primary and secondary school I will choose K1 in YC if their primary and secondary are also good. They have very good results of IB and IGCSE this year, can it prove that it's a good school? Many thanks!!