I am having my Gastric Sleeve done on 03/30 with Dr Guillero Alvarez. I have 2 very good friends that have had the GS done with him 1 just a week ago and the other is a year and a half out and is down 100 lbs. I have been so extremely impressed and I work in the medical field. Everything is so professional, they are so amazingly helpful. My friend that just had it done says that American doctors should learn from them. She was so impressed. He is only 2 hours outside of San Antonio. I am not nervous at all.