Jakub & Boris place is great! We only got the chance to interact with Boris, but he's so servicial and kind: he provided very detailed information to get to the apartment, the room was very clean, the whole flat is great. They will give you a warm welcome (plus a sweet typical cookie to start your stay at Prague). Maps and guides are available and Boris was very helpful and gave us such good tips to enjoy the city in a better way. I definitely recommend to stay at Jakub and Boris place if you are visiting Prague, it will enhance your experience. If I come back some day, I'll definitely come back with them.