I highly recommend the school. My kids got their highschool from there and they did not have any problem with TOEFL, SAT I & II. They are doing very well now @ universities.

Mind you, there is no school that satisfy everyone.

If your kids are enrolling into lower classes (KG, Grade 1, 2, 3) then it is a easy and smooth start for them. If they will be enrolling in middle classes then they (and you also) would find it difficult at first, but with serious work and extra efforts at the beginning they should be okay.