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I thought it was a tad on the pricey side for the size and number of uses I got out of the product. It did a great job, but I'm sure I can find something to replace it that has a better bang for its buck.
I tried to use this to get the color out of my hair since there was a reviewer that said it was bad for their color. That didn't work for me. However, it smells nice for a long time after you use it. As others have said it is necessary to condition well afterward, although you will know that when you finish rinsing it out. It makes the hair so dry I really had to gob on my conditioner and leave it on a few extra minutes. I probably wouldn't buy it again mostly because of the price, but it gets the job donw. The bottle says to use every other week, so even they know how harsh it is. I think Neutrogena's clear clarifying shampoo is less harsh if that is something you're worried about.