The Buenos Aires steak house is mainly about Argentinian Beef as you would guess.
The restaurant is pretty ordinary, quite small, small wooden tables and could be anything.
However the starters, which one assumes are truly Argentinian as no one had heard of them, were interesting, and everyone agreed the steak was outstanding, and their cheesecake was fantastic.
I also had a very good but inexpensive bottle of Mendoza Malbec, £25, Terek or something like that, and very nice, recommended by the waiter, who was helpful and chatty.
So good for a good steak if you do not want a fussy restaurant but care about your meat.