Consensus seemed to be that the Kirkland charcoal burned at a lower temp and with more ash as compared to the Kingsford Pro that Costco also sells.
Worth a try. But I still like the K Pro better at the usual Costco sale price of 50 cents per pound. The lower ash is important to me since I usually only use charcoal for long low/slow cooks.
For a quicker cook, the Kirkland (or KBB) would be fine with me.