Thoughts on Wysong canned food?

I am looking to suppliment my cat's diet. They are currently on canned Innova and Innova Evo. They still like the occasional dry food, even though I hate feeding it, and are happy with less than 1/4 cup Innova Evo dry daily. Sometimes, they don't even eat it all. I also found recently that they liked 3 of the grain free varities of canned Wellness, so I'll probably be adding that to the rotation.

I'm wondering, though, what are your thoughts on Wysong canned food? I know that Wysong doesn't advocate a single food served day in and day out, and as such, none of their foods are 100% complete. I'm fine with that as I don't have a problem rotating. I also think my cat's are sick of the turkey/chicken flavor, so I was thinking of adding a can or two a week of the duck and/or rabbit Wysong just for flavor variation.

Good idea or no? Should I just stick with adding Wellness occasionally? I've never used Wysong before, but I do have some reservations due to their stance on some issues. I don't like that they use so many grains in some of their products (and think it's ok to do so), or how they seem to attack other companies. I just thought my cat's might like some unusual food flavors now and again.

I like wysongs au jus , yes they are something that needs to NOT be SOLE food .... WELLNESS gets TWO paws up here