We spend two nights in one of Alex's rooms (no.9).
Pros: Centrally located, easy check-in, all basics provided, good communication.
Cons: noisy bar downstairs up to 5:00 am (take your earplugs), mold in the shared bathroom, stuffy and moist air, not as clean as expected (not due to the hostel-situation but because the room hasn't been cleaned properly.
Conclusion: The accommodation is okay, if you only need a central place to sleep. Personally I wouldn't really recommend it.