For starters, I was so excited to find out that there was finally going to be a Gen in Arizona! I've been to multiple locations in California and to the one outside of Las Vegas - always great food and amazing service to follow.
Unfortunately I cannot say the same for this location. The food is good but quality definitely differs from the others. For example: the cuts of steak are thinner. Not too much of an issue though, as it is all you can eat. I understand that this location is new, however it's still frustrating that my friends and I had to wait at least 10-15 minutes to get greeted by our server and put in orders for food+beverages. Many times our orders didn't come out and drinks were not refilled so we had to ask our server again and again. It got to a point where we had multiple servers helping us, as our original girl was running so behind.
Also, being a regular at other Gen restaurants, I'm familiar with their payment policy. Three debit/credit cards to split and the rest may be paid cash. It is different here. You may either pay in all cash or split between three cards, not a mixture of both.
Overall, you can't get a better deal on AYCE KBBQ than at Gen so this is a good addition to Arizona if you can look past the lousy service.
Tip: go during lunch hours or grab an early dinner (before 7pm) to avoid long waits.