the apt is not walking distance from the center but that gives you the chance to live Prague even out of the crazy crowd over (the wonderful) Karlův most. And public transports are cheap and fast.
Boris was the perfect host. Chatting with the other ladies in the apt was a plus. Full of wonderful details in every single corner.
Really the best way to visit a wonderful city, full of culture and history and art, and have a taste of its unexpected cosmopolitan mood