This place was a solid find. A bit off the beaten path, it's a trek from the convention center but well worth it.
Their menu is loaded with authentic argentine dishes and can suit any taste. The queuing/tanking system is a bit unorthodox but at lunch it didn't really matter.
I had the flank steak meal - it was cooked well and the side salad and veggies were amazing. Make sure you try the chimichurri sauce on your steak and bread.