Prior to buying a full-size bottle, I received a sample sized trial bottle as a gift. I was so impressed with the results that I used a gift card to purchase the full size bottle. I fell in love with the results. There was almost no color loss from washing my hair, and my hair felt so silky and smooth. I also loved the scent. My hair smelled like I had just left an expensive salon. It even made my pillowcase smell pretty! However, I would NEVER be able to buy this on my own. Its high price point is so beyond my budget, I can't imagine every buying it again. However, if you have the money to spend on a color shampoo this should be the one. Effectiveness I judge a color shampoo on how much color loss I see in the suds. This shampoo had zero color loss in the sink and I noticed that my hair had a silkiness and shine that I had never had before. Scent My hair smelled like an expensive salon. I love the crisp scent and it even made my pillowcase smell pretty. Wish I could afford this more often!