I don't use the Merrick dry, but I certainly would, it's great food, IMO. I currently use Solid Gold Hund-n-Flocken which is a lamb based kibble. I then add 2 scoops of Merrick canned in, mix up, and end up w/ one very happy, healthy, and content dog.
I've also heard good things about Canidae.
I think I saw the Merricks at the pet store. Funny cause before our B I had a toy poodle (he's in doggie heaven now) and I used to feed him mighty dog for the whole 14 years of his life and here I am now asking for food advise for Champ. You live, you grow, you learn.
I have fed Iams or Eukanuba for my dogs/cats for 10 years. I had a dobie and a rot prior to my 2 now. I usually put a little sour cream in it to get them to eat it faster. I like the food. It is conveinint, not to expensive and they like it. Both dogs and cats haven't had any digestive problems on it. The recent recall was only on wet food, which you know already, but I have never fed that to any of the animals because I want to keep their teeth strong.