Pros: very nice place, all rooms have air con, nice common areas, well-organized pub-crawls every day. Cons: the staff is not friendly or helpful, unless helping you involves your spending money in services offered by the hostel.
Excellent location near the pier and the main street. The staff is super friendly. Rooms are ok. I would come back.
The rooms are 6 blocks away from the reception. Check in is at 3pm but check out is at 10am. No breakfast included. No wi fi (!). The room was like 5 degrees hotter than outside, but there was no air con and we could not keep the windows open because there were no moskito nets, so we melted inside. I do not recommend it.
Clean rooms with no air con. Basic breakfast included. It has an amazing kitchen you can use, and an in-house laundry room. The common areas include a former theatre with an awesome bar, and a patio with deck chairs. Only con: somewhat far from the main sightings.
Nicely located near the Accademia and not far from the Duomo and Uffici. Clean rooms, ours came with air con (yes!) and TV. Breakfast included. You can also dine in (you should, the food is homemade and really good). But what made the difference was the staff: incredibly friendly and generous.
We got a double private room and it was very nice. Pros: very well located near Termini train and bus station, clean, very safe and nice. Cons: no air conditioning, no breakfast (!), really expensive bar (4 to 6 euro a small beer), no wifi in upper floors.