Considering selling concert upgrade-

After seeing all of the posts about how terrible the shuttle getting out etc etc- are there any success stories? I am riddled with anxiety about this. The only reason we are going is for the concert so thinking about not even going 😵‍💫 have shuttle tickets from Waterloo and landing in Austin around 11- was going to drop bags at hotel and change and figure out timing?? Any thoughts advise or good thoughts welcome LOL