Poor management has caused me to add gran agave to my banned list. I had been a weekly customer since they opened and will never return after the GM accused me of using an invalid coupon. Not my fault that DoubleTakeDeals has a buggy website.  Instead of politely making me aware of an issue he makes a scene in front of his customers. All over a two dollar coupon.  I have eaten there hundreds of times.  Good food but I and my co-workers will never return.  Shameful treatment of a formerly loyal long-time customer.  Very insulting.  Please quit offering online coupons if you do not know how they work.