The accommodation is close to the center of Prague, just 10-15 minutes walk. It's perfectly clean and quiet, the bed is comfortable, the host provides guests with towels, tea, coffee, big bottle of water, fruits and candies :) There is also a bunch of directions of where to eat on the neighborhood, the list of ATMs, emergency phone numbers, taxi etc
It's pretty easy to get there from the airport, via Airport Express and a short 10 minutes walk (I was a bit lost for the first time, but Google maps helped).
Peter's colleague Vasil who met me was very nice and helpful.