I have gone to Yin about 3 times. First off the wash stations are very novel and it is a great experience to lay down to get your hair washed, there is less tension on your neck and back.
She is very careful when she cuts. I have explained to her what I wanted (even out layers, trim) and she is great. She takes her time. Her blow drys are also fantastic.
Everyone is friendly here and prices are reasonable. Bring cash...versus card. ;)