Science Diet is not a food that I choose to feed to my pets.

That does not mean that if someone else chooses to feed it to their pets that I think they are a "Bad" person or feeding their pet "crap". It's just not the quality food that I would feed to my pets. BUT it's all in what works for your pets and your budget. If your pets eat it, like it, and are doing fine... and you're happy with it, then theres no reason to change.