Club Hotel Praha is a really nice place to stay and an superb value for money deal! Me and 6 friends had a big room for ourselves with bathroom, which was big enough for 2 days and additionaly very clean. Of course the equipment was spartan, but you cannot expect more for the price. Also the breakfast was included, they even make you scrambled eggs on demand. The airbnb is very central, you just need to go two stations by metro to reach the very centre, but you can also walk.
All in all I can really recommend this place, especially for younger travellers, we had no complications and the staff was nice.