I recommend Anatoliy's place because the room is big enough, has light and is very clean. The kitchen and washing machine are available also!
The place is located outside the center of Praga however is well connected by tram and is close to train station.
Anatoliy is a very good host, he was really flexible with checkin time and prepared a map and a list of suggestions for us, he also took the time to explain everything in his house and information about the city.