Joe & Jills cat food

Does (or has) anyone fed 'Joe & Jills' cat food?

My cat has been on this for a few months now as it seemed good from ingredients - however, her fur which is normally really soft and shiny has lost condition and she has dandruff! (Her fur now looks a bit dull and feels wiry!)

I was wondering if it might be food, so change onto Orijen! Too soon to tell any difference yet!

Just wondered if anyone noticed anything similar? I'm praying it's nothing more sinister - we lost a cat recently (April) to RD and it was heartbreaking!