I had really dark brown, almost black, with some red in it. I used two bottles. My hair is to my shoulders and to me the scent was not bad. I left on 20 minutes and my hair was the same color as the girl from the movie 5th Element. Weird thing was that I did like it lol. I recolored my hair a lighter brown color but it came out a light copper, straw shade. Will go a little darker next time. I would say try it but don't be surprised by the color. Will buy again.