We stayed in Karn's flat for four nights and had a great experience there. Karn's bedroom is quite basic but very comfortable for a couple. The bathroom is opposite the bedroom and is reserved for Karn's guests. Karn's flatmate has his own bathroom, so privacy and cleanliness are guaranteed. He was a great host, very helpful in giving us tips on transportation and the city in general. He was also very flexible in accommodating to our - rather ill-timed - arrival and departure times. The apartment is located in a quiet neighborhood, a 15 minutes walk to the city center. Definitely recommended!