ORCHIDS The International School in Langar Houz for a 10 year old, when it only goes up to grade 8?

My granddaughter is 10 and her parents are looking at ORCHIDS The International School in Langar Houz for next year. I am at home with her in the afternoons in Tellapur, so I have been asked for my view as well, though the decision is theirs. Two things I would value hearing about from families who know the school. First, as I understand it the school goes up to grade 8, so she would need to move again for grades 9 and 10, which is not an easy point to change schools. Has anyone planned around that, and was the next move straightforward? Second, the daily travel. Langar Houz is not next door to us, and I would like to know how long children from our side spend on the road, and whether that leaves energy for homework, which is the part I supervise. I would be grateful for experiences rather than general impressions.