Serrano's Mexican Food Restaurants

My husband and I have been going to Serrano's for the past 20 years. We frequented the location on Val Vista and Guadalupe, which is no longer open. Since the closing of this location the closest location to us now is this Serranos on Mckellips. We have tried this location twice now and the first time they got our order wrong, no problem things happen. Last night took the cake. We arrived close to 6pm. We were able to sit in the bar where there was approx. 3 other tables already seated. Stephanie the waiter was pleasant and quick to take our drink order. We ordered our dinner when she returned to the table with our drinks. I ordered a bean/cheese burrito and my husband ordered 2 chicken flautas. At 6:40pm my husband said wow 35 minutes for 2 dinners? Stephanie came by a few minutes later and we asked her why it was taking so long. She replied the other side of the restaurant was so busy but she would keep checking on our order. In the meantime two other tables filled up around us. A couple who came in 30 minutes after us were served there meal. By this time we were fuming but still decided to wait thinking our meal would be out any time. Now 1 hour and 10 minutes later the waitress comes out with a tray, which we are thinking is finally our meal. Nope, she goes to the other table across from us, who by the way came in 40 minutes after us. Needless to say we got up and asked for the manager. He came out and when we proceeded to tell our story he just replied with a sorry folks. I understand having a bad night but I see a BAD trend with this location. I'm sure the Serrano family never intended to have service like this coming out of there restaurants.