I stayed at the Jack for the few days I was in Cairns before going to Mareeba for a few days. I got the room at $18 a night which is great value for money, though prices now are typically more around the $21 a night mark. More importantly though the Jack gives you everything that a Backpacker is looking for, you get free Wi-Fi, a free evening meal, safe and secure lockers, lounge area with TV and great location in walking distance of the bus station, mall, and the docks. They also have a large bar area connected to the hostel with live music and organised events each evening.
The only drawback is the cleanliness of the hostel isn’t great with the bathrooms and showers in particularly being pretty poor standard. This isn’t necessarily just the hostels or staffs fault as probably the most off putting event I had was a guy clearly jacking off in the stall next to me while I was cutting a loaf. Overall fantastic stay, great atmosphere, and if you are looking for work in the area as well it is probably the perfect location with the number of other backpackers there and cheap price. I highly recommend staying here.