1/5 I did not like it.
Packaging is good, I like shampoos and conditioners in this kind of packaging as long as it is flexible enough to allow the product out. It is practical, does not occupy much space, and easier to use in the shower.
The shampoo and conditioner from John Frieda Go Blonder are supposed to lighter your hair color irrespective of natural blonde or dyed blonde hair. I did not feel that it made my hair any lighter, which kills the purpose of buying this product. A secondary effect I had while using it, was that it dried my hair quite a bit, so I stopped using it. If you already have dry hair, this might not be for you, but you might get away with it if you have very oily hair. I have used other products that contain Camomile, and help lighten your hair color, and they do work. Grisi products are one example, which also dry a bit your hair, so you always have to use it together with masks, or products that replenish your hair and keep it under balance.
Would I buy it again? No, it did not do what it says it does, and it dried my hair. Surely not.