Roxbury Latin - advice

Hello World! My family is enrolling a student at The Roxbury Latin School for 9th grade for the upcoming school year. Does anyone here have experience with this school? Specifically, is anyone willing to share their “I wish I had known XYZ” stories (open to hearing firsthand or secondhand or thirdhand stories), so we can learn from accumulated wisdom? Our family has no prior history with the school, as we have traditionally been boarding school people, so any advice would be helpful. This will be our first experience with single-sex education, with private day high school, and with the ISL (the relevant sports league). Curious about course scheduling, extracurricular enrichment, social issues, and any other nuances that you think we should know in advance of the student’s arrival at RL.

Outstanding college placement.

@Publisher yes, we know it to be good. please do let us know if you have any good information about how to hit the ground running successfully as a 9th grader there, based on stories you have heard from alumni/parents etc.