People make the experience. Since 2015 in my case.
Brinkhoffs - the Kneipe (pub) that is more cozy than my living room :D
I came to realise I should study in Bochum because I was hosting a couchsurfing who told me about his program at RUB and I wanted to do the same. This guy was Daniel who you might know as president of ESN Bochum :D