I really think the reviews you give at salons really depend on the person who did your hair. I've gone to many different salons all over phoenix, scottsdale, glendale, and more. This place is 30 miles from my home and I would drive here to have my hair relaxed.
Considering the amount of times I've been there it angers me I can never remember my stylist name. When she does it, it's perfect, an amazing job and I've never seen it straighter and more perfect. However one time she was doing my hair, she took off for a quick second and someone else decided to get involved with my stylist creative process and put the relaxer further down my hair instead of just on the roots like my stylist had done. I'm no professional but the moment this person did it and my stylist came back I told her what happen and she was quick to try and get the damage out. Unfortunately it created a little damage and I ended up having to cut off inches of my hair a couple months later because they were so fried.
I remind you, my stylist I see is an amazing person and I love her so much. I'd never trust anyone else on the planet to relax my hair accept for her. But unfortunately I stopped having relaxers done, chopped off all my hair and let it finish growing out to it's natural state.
But as I sit and think about going back to a relaxer, I know exactly where I'll be going if I decide to do it again.