I thought that I was going to be discovering a great new thing in hair coloring! Boy I was wrong! It does nothing but suck! I hated it. The first thing that I noticed was that there was nowhere near enough of the coloring foam to completely cover all of my hair (and my hair isn't that long, just a little below shoulder length) so that started things off with a problem. Next was that I seemed like it just dissolved into a gooey slime on my head. And as a final insult it didn't even cover my roots or do anything that would slightly resemble a change in hair color. Effectiveness It did not change my hair color even a little bit, it was like I just put some goopy stuff in my hair and let it sit there. It was not effective in the least. Ease of Application It was kinda easy but the directions were not very clear and the foam just dissolved into my hair and did nothing. The amount of coloring in the bottle was no where near enough to cover even half of my hair so don't do it!