I wish you luck with your lap Nissen. You will be fine. Just know that your esophagus will be a little tight for a while after surgery, which I am sure your surgeon explained to you. They don't usually explain just how it will feel, they haven't had it done themselves. That is why I wanted to prepare you for when you go home and started eating. You may be frightened at first, but just don't panic when and if it feels like food has gotten stuck going down. I also had a hiatal hernia repaired at the same time.
Regardless of what Christo says, I don't have any vested interest in Astra Zeneca. I just wanted to make sure you explored all your options. Knowing that you have the hiatal hernia also, it sounds like you are making the right decision and after all, it is your body. I do still have to take Nexium, but I don't think that is uncommon.