Thanks @Robin63 for all the suggestions. Very much enjoyed the lunch at Susan Balbo and also visited Selentien where the architecture was indeed spectacular, whist in BA Roux, La Pecora Nera Grill and La Carniceria where all excellent. La Carniceria was a particular treat, especially as the wine list was particularly good and the bottle of Gran Enemigo 2014 we enjoyed with dinner for less than £30 on the table was probably one of bottles of the trip!
In Mendoza also visited Catena Zapata and Vina Cobos, and had a night of wine and tango at Bodegas CARO, whilst also visited Piedra Negra in the Uco Valley.
I think a defining feature at many of the wineries that I hadn’t expected was the growing focus on terroir, both in seeking to bottle single vineyard wines, and focusing on how different parts of the vineyard perform, with many tastings focusing on comparisons of these single vineyard offerings.
Would definitely recommend Argentina for a wine lovers holiday!