I just had mine done two weeks ago. Band was removed and the sleeve done in the same surgery. I was in the hospital 2 days which is what my surgeon does for all sleeve and bypass patients. I haven't had any problems and have been able to each anything I've wanted to this week without any vomiting or stomach upset. No complications so far and no regrets.
I have been more tired with this surgery than I did with the band surgery, but I'm also 3 years older. I had less pain and barely used any pain meds in the hospital and none once I got home.