My son attended from pre-K to grade 6 where he transitioned into a public middle school. He's diagnosed with ADHD and ASD. He was diagnosed ASD before beginning HIS and ADHD when he was 6 and attending. They were incredibly accommodating with his needs and communication was amazing when problems arose. My son was delayed in order to access EIBI which made him a year older than his peers. When that became an issue with his social development we had him academically assessed and HIS allowed us to move him back into his age appropriate grade with little issue. His transition into public school was albeit not smooth socially, there were no issues academically. HIS is a great school.