I love Go! Endurance. It's awesome. I'm pretty much going to be rotating between Orijen and Go! from now on since Jackson is bored with Acana. When Jackson is on Go! his poops are excellent, LOL. He has such tiny, but really firm poops and goes twice a day. I feed the canned food often too.
for Go! And yep, the kibble is smaller than Acana.
I feel like not enough people know about Go!... I only have one store near me that sells it.