FYI- I know this is an old post, but I finally ended up discovering Cerini at Patio Bullrich. It’s very expensive by Argentine standards, but comparable to what you’d pay at a “nice” US/Europe salon but most of the stylists speak English, “get” your needs— this is so important if you know I mean, after suffering many awful haircuts and even worst highlights I was glad to shell out a higher amount and the experience is reminiscent of being in a nice spa (they bring you teas, do scalp massages, etc) it’s also a fun place to people watch (lots of Argentine celebs go there)
I recommend Alex