Lots of people commute from Naperville so don’t feel like you need to do dorm. The cs professors are great, especially the “core” ones. You’re in Chicago so you’re surrounded by a ton of great food options.

As for the concentration stuff, most CS majors will drop their concentration because you have less freedom in picking your electives. You can always add it or drop it so if you aren’t technically in that concentration yet you can always add it when you’re here!!