My friend’s kid also switched to CDNIS after P6 and their feedback is very positive so far. The kid’s English is like native I think this is the reason he had no trouble to adapt to the new life. The weakest subjects in G7 were French and Humanities (requires a very demanding research skill which doesn’t existing in local school). And computer skill, esp Mac, was also a minor issue when he first started.
Yr 7 require very high standard of written skill in English but as I said before if the school can give u an offer, I am sure kid should be able to handle. Maths is slightly easier but teaching method and syllabus are totally different. Chinese can’t compare with local school but need to get use to simplify. Not much presentation but a lot of projects to do at this stage. Although school life is totally different as he got more subjects such as history, geography, D&T etc but my son enjoys so much!
I am not sure about 天份but all I know is my son read a lot of English books n always watch English movie, YouTube and he doesn’t have to read the subtitles too. so I think he has a lot of vocabs in his head so he can make full used at IS now.