They did a great job on my hair, and I have very long and thick blonde hair.  There was a slight smudge on my highlights where the bleach leaked out of the foils, but it wasn't due to lack of skill or attention.  Other than that my experience was great and I was very happy to have used my Groupon.  It's about as expensive as other Aveda salons, but you definitely get quality products and service for the money.