I feed it and its worked for us.
I wouldn't worry about oatmeal if your dog is allergic to wheat, they are two different things.
I also wouldn't worry that it isn't grain free, as I've noticed the grain free foods just substitute potatoes instead.
You have to see what works best for your dog. Many dogs with allergies do fine on foods with oatmeal. Just as dogs with chicken allergy do fine on foods with other meat.