Stayed here less than a day as I was only meeting up with a friend here and then catching a flight late that night. But, it seemed very chilled out and tranquil. They had a nice lounge room with a plasma, many DVD's and a guitar that you could play. Staff were friendly and the rooms were clean.
Stayed here for 6 days, the staff were very helpful. Nice breakfast, late checkout time, a bed to relax on the roof terrace. Only downfall, was it lacked a bit of atmosphere. Free coffee and tee all day, and the craft beer available was delicious.
Spent a nice night in this hostel, went to Iguassu in the afternoon. Walked around town, and caught the sunset at the border of Argentina, Paraguay, and Brasil. The staff were very friendly, and had a great chat to an Aussie who had lived and worked in Argentina for 10 plus years. Very insightful.
Had a good time at this hostel, it is a little far out the way form town though. One of the staff gave me a lift to the bus station to catch to Iguassu the day I was leaving, which was very nice.