Katka is a responsive host, I miss some instruction on the key mailbox location (purely my fault) and Katka still reply at 12am (sorry to keep you awake knowing that i still havnt checked in....)
The apartment is beautiful, looks even bigger than photos, with a balcony. with good heating system helps me to survive my stay in winter.
Walkable distance to quite a few spots, apartment is at the quieter side (across the river), easy to reach from airport and a few supermarkets around I did have a great time at Katka's listing and I do recommend it!