Klaus and his place were awesome. We had a very early flight to Prague and Klaus was kind enough to let us keep our bags at the place while it was getting cleaned up from the last guests. This made for a great first day in Prague since we were able to get going right away. He even recommended a few breakfast spots right by the Airbnb.
He even stocked the fridge with a couple of beers, Cokes, and waters. Awesome host. He was super quick to respond to any questions we had. I can't speak highly enough about Klaus and his place.
Letna is a fantastic district and is much quieter than old town.... although old town is just a 20 minute walk or 8 minute Tram ride. Explore this district though, you won't regret staying away from Old Town.