Eliska was easy to reach on the phone and answered messages during our stay. The place was very suitable for 10 people and, even though it was not very clean, you could stay for a week and more without problems. We had 4 set of keys given to us, which was very helpful. Its location is amazing, only 10-15 minutes to the centre of Prague. Considering its price, I think all other stuff aren't that important (e.g. mattresses).