I feed Merrick BG and Harley loves it! We started out with the traditional Merrick but then switched to the before grain. I usually buy a 6 lb bag of the chicken and then will also buy the little sample size of the buffalo and will add it to his food sometimes just to mix things up. The one nice thing about the traditional Merrick is the variety of "flavors" that have the same base ingredients so you can switch back and forth without the transition time, the BG only comes in 3. Harley seems to have a sensitive belly and this food has worked out great for us! Hope this helps...
Jeri and Harley