I am very picky about my color and highlights so I don't often write great reviews. My experience with Tina is the exception. I saw her yesterday and told her that my hair was too yellow. To make a long story short, she realized right away that something had changed with my hair and asked if I used well water. I moved into a new house just before my last color treatment and yes, there is well water. She said that makes sense due to the effect on my color. I didn't put the two things together (duh). It's not that Tina knew enough to figure that out, it's that she cared to listen to my complaint, ask questions, and come up with a plan to overcome the problem. I greatly appreciate her competency and concern. I recommend Tina to anyone looking for an excellent colorist!