Awesome but very layed back place close to everything which could be important during your stay in cologne. Yeah, everythig.
I guess you come for the carnival, which is nice: Just one thing: My landlord lives in next building - So you can use the flat in every normal way - But: You really really have to keep the party out of the flat. Please dont bring more people than expected or extra-guests. Otherwise my landlord might kick you out - she is fair, but quite strict.