I think this was discussed before, but I was too lazy to go look for the old posts, so I started a new one.  *shrugs*

I tried their Electric Black on my medium-brown hair, expecting to get a nice, bluey-violety black, like the package said.  Er, no :-( .  Even though I left the stuff on longer than the instructions said, my hair only turned a slightly darker brown, with no bluey or violety tint (as far as I can tell).  I am very underwhelmed.

Lynn, however, tried their Funky Cherry on her dark-brown hair (or the roots are dark-brown, anyway. . . from about two or three inches down, it's still a bit auburn from when she dyed it in October).  Her hair came out a nice red, even on the dark roots, which is surprising, since it's hard to get even permanent dyes to show up on her hair.  She did it a few days ago, so it's faded a bit, but it still shows up.  It's fading unevenly, though, remaining redder on the dyed part of her hair than the roots, which I guess is just further proof dyed hair is more porous.  I think she's had a good result, and might try that shade myself, at some point.  I dunno if she'll get it again, though, since she complained about having to spend that amount of money on something that'll wash out so quickly.  *shrugs*  Not all that expensive, I thought, but whatever.