I have a super finicky old cat, that just will not eat hardly any kind of food. When I tried this, he LOVES it! Now he refuses to eat any other kind of cat food! He is highly prone to crystals in his bladder and as long as he eats only this, we have no problems with the crystals. He refused to eat every single brand of the prescription diet stuff for urinary issues, but this stuff he loves and it seems to work. If I had to say anything at all that is negative, it would be that this stuff does stink, but as long as my finicky old boy wants this, I"ll just hold my nose and feed him what he will eat!