Help!!! DOG FOOD QUESTION!!?

OK, SO MY DOGS RAN OUT OF WELLNESS SUPER5MIX LARGE BREED DOG FOOD. I WENT TO THE STORE WHERE I GET IT AND THEY ARE ALL SOLD OUT!!!!!!! I ALSO WENT ONLINE AND CHECKED OTHER STORES. WELL GUESS WHAT THEY R ALL SOLD OUT TO! AHHHH!!! SO MY DADDIE WENT TO COSTCO TO GET SOME STUFF AND HE ALSO GOT LARGE BREED DOG FOOD THERE. IS THE KIRKLAND SIGNATURE DOG FOOD BRAND GOOD???