I really thought hard whether or not to eat at this restaurant and at the end went for it. It was an award-winning Argentinian restaurant located within my hotel which was the sole reason why I chose it. I would not have gone had it be Italian or French but Argentinian which is not common in Tokyo – yes, I would (but not if it was not in my hotel). Did I like it and was I ultimately happy with my decision? Yes. (And no also because I did not have enough number of days in my trip to try all other things Polish I wanted to try which I did not expect.)

When in Argentina, eat steak. As suggested, got one. Wow. Mouth-watering. And bloody red inside, as requested.
I would go again if given an opportunity.