Square is a great upscale salon. It's modern and holds little events here and there. On Fridays you'll be offered a glass of wine/champagne, what's better than to bet beautified while getting a buzz.
I only go to one person, Luibi and she is amazing. She takes her craft seriously and her appointment book reflects her skill (impossible to get in). I book for months in advance so I never have to worry about her fitting me in. She's amazing and loves to make her customers happy.
The salon also sells professional hair care and you can get 20% off products every first Friday.