The only thing I didn't like is the brush that was included in the kit, the bristles were too far apart and for my thick hair it just didn't work. Maybe if you're going for streaks that brush will work but I was going for an all over color.
And It's an awesome product!
Bright colors that last a long time. For me, anyway. Proper hair care is the key. Bleach your hair first. Leave the hair dye in for at LEAST an hour. Rinse with cold water. Don't wash with shampoo every day. And when you do, use cold water! Cold water is the key! It keeps the color, longer. Also, adding a little bit of the dye to your conditioner helps as well.
I'm excited to dye my hair again with this stuff. I will ALWAYS recommend this brand to anyone who wants brightly colored hair.