I've tried everything, Applause for Applaws!
2 of my cats have sensitive digestion. One is frequently sick and the other always has diarroah.
My vet recommended switching from Felix to a premium / organic brand. Since trying this, both their conditions are much improved and both cats adore it. My 3rd fussy tabby cat who previously hated wet food and would only eat dried, also loves it.
I'm disappointed to read the two reviews which say it isn't a complete food, but they fail to detail what vitamins it misses so perhaps an update would be more informative to anyone concerned by those reviews.
I tend to try a range or organic foods for my cats to give them a broader range diet anyway as us humans don't like to eat the same thing day in day out so why do we assume they do? And for me, the proof this is a good food is in the improved health of 2 of my cats. If they're happy, I'm happy.