I love this hair color. Just used it for the 2nd time. This time I used the hydrating treatment beforehand to cover grays and it worked well! Not 100% of grays covered, but about 95%, which is good enough for me since I don't have that many. Definitely got more gray coverage than the 1st time without the hydrating treatment. My hair is super shiny and soft. Good experience with customer service...never received an invoice or tracking number for my order. I emailed them and got a response within 24 hours with the information I needed. The package arrived exactly when. They said it would.