I was sleeved by Dr. Guillermo Alvarez in Mexico a week ago and would highly recommend this surgeon and his staff. They were very professional, facilities clean and modern, and the staff treated us like family. It was a very good experience. So far I've lost 15 pounds in the two week pre- op, and 10 since surgery. Yay! I hope the burning that occurs as I sip my liquids is just temporary....anyone else have knowledge about this?