Katarina's apartment was truly lovely. It was simple, clean and central. 3 important things that I think any traveler truly needs. Though I didn't get to meet Katarina personally, she came across as being very friendly and helpful in her communications. She even picked up a free SIM card for me. We met with her friend/colleague - Pinar, and she was a really helpful and funny lady. Overall, highly recommended, a truly charming stay in gamla stan :)