CHDS does absolutely nothing to prepare you for real life. It is basically a prep school for Sidwell and is home to 50% Taylor Swift stans and 70% assholes. The school is a wannabe progressive that fucks up a little too often.
Students are pretty nice and they have an impressively small amount of bullying. Stay clear of taking French and you'll be fine. Beautiful campus but you got to wonder what the fuck they are doing with all that money.
Warning: You may meet famous people's asshat children who will threaten to arrest you.
Typical conversation with a kid from Capitol Hill Day School:
CHDS kid 2: Dude, did you see the presidential debate last night?
St. Peter's kid: What about it?
CHDS kid 1: My mom was in it.
CHDS kid 2: My mom *was* the debate.
St. Peter's kid: WTF...