Argentinian steak house Cheripan
It's in Zona Rio. The taxis should know how to get there.
The rib eye and porter house I had was dry, tough, tasteless. It's similar to and not any better than steaks served at the Sonora Grill. Their salads and side dishes were small and forgettable. Dinner with wine costed me about $40 per head.
Compare that to restaurants in BS As that serve their cheaper sirloin steaks for $5 dinners, that are far juicier, tastier and full of that delicious beef aroma.
Cheripan's beef is not Argentinian by far, not even Costco's quality. I don't know where they get their beef from, but I kept being reminded of the old donkeys on Revo. Hehehe.