The only negative I could possibly say is that some high school students can have a hard time keeping up with all the homework and still having a life. Many of my middle school students go on to a local IB program. It has an excellent reputation and is filled with many gifted and very high achieving students. Some fare better than others. Our babysitter graduated from the program with a 4.0+ average, was captain of the football team and had a great time in high school. He is PG and his mom is my "mentor" for dealing with my own DS. His experience is not really the norm though and most of his IB friends did not play sports or have extracurricular activities outside IB.