We traveled around Holand and stayed in Stayok hostels 3 times, in Rotterdam, Haag and Haarlem. We had no acces to internet in all three hostels, so free wifi is not so true. But the breakfast was always nice and the atmosphere and cleanless depened on the age of the hostel. The best was in Rotterdam, the purest in Haarlem. Haag had a nice staff, which helped us much and had a good location, by walk to the center and the tram will take you to Scheweginen and Madudoram in 15 minutes.
Nice hostel with nice staff. Great breakfast and good value for money. We stayed 5 people in 6 bed room, two of the beds was at loft and the aircondition was installed under this plaace with beds, it was unpossible to sleep there because of high temperature...and it have so easy solution, just install the aircondition above this place for sleeping.
Hostel was good, for me too much people in one room, but I knew about it, so no complain. Except, in the middle of the night two guests came to the room , than they left and came back at 5 at morning completely drunk...not so nice experience...maybe the hostel staff would not allowed them come to the hostel in this condition..