Please note that Sotogrande International School was acquired by a for-profit company called Inspired in recent years and the changes at the school are seismic such that any reviews prior to the last couple of years are no longer valid. Out went an excellent Headmaster, in came a 'CEO'..
Previously the school advertised itself as 'proudly non selective', however, in a drive to increase its IB scores for marketing purposes, the school is now highly selective, both at entry and at age 16, where only the higher performing students are offered the IB program.
If not offered the IB program, the school effectively forces students out by only offering an alternative qualification that is not accepted at EU universities (American High School Diploma). So if you have children asiring to an EU university, be aware that you may have to find alternative schooling at age 16 depending on how strict the selection is at that time.
My eldest is currently at university and on course for a 2.1. Looking back, he would not have met SIS's current selection criteria to continue with IB, so we would have had to leave the school. As it was in the pre-Inspired, pre-selection years, he was able to continue into IB and ultimately to an EU university where he is doing well. The current regime would have denied him this path. I think it is important for parents entering the school to undertand that the advertised high IB scores come at the price that their children will be forced out of the school at age 16.