Splat Hair Color??? *Will definitely pick best answer*?

Ok so I have a few questions about the Splat Hair Color.

1. Does it work well? Vibrant colors even against dirty blond hair?

2. If I bleach it before I put the color on, then when the color fades... will I have a big bleach spot in my hair?!?!

3. Is it hard to just do streaks and NOT all over color?
1. Yes, It does work well and yes the colors will stand out even against dirty blonde hair



2.Don