The hostel is decorated imaginatively, the staff is extremely helpful, providing anything you request if it is available. Only 2 downsides:
1. It is a very old building with no elevator. If you can't walk 4 flights of stairs, this isn’t the place for you.
2. They do NOT take credit cards, even though all the booking websites say they do.They only accept cash or wire transfer and they only let you know this on the day of check-in. They also list the price in euros instead of the local currency. That being said, they are very relaxed about the payment, giving us ample time to get to a bank and withdrawing the money. All things considered I would stay there again.
One last thing: the building entrance can be hard to find. Just look for the Museum of Failure; it's just to the left.