I used that app. It was great early in the game, but towards the end the wait was 60+ mintues so the app recommended not using it.
The one thing that sucked was when I stood in a long line to get drinks during the 2nd/3rd period break. Right when it's my turn to order, the manager shouts to all the cashiers that beer is done. I tried to plead my case to the cashier but to no avail. I waited in line so long that I watched Gabby score on the tv screens out on the concourse. Didn't even get to see the gwg live.
Not sure what they showed on tv, but it looked like they were ready to line up to shake hands and then it sort of didn't happen so both teams just raised sticks to the fans. I actually prefer it. Regular season game, no need to shake hands, but at the same time it's a fan spectacle, so they acknowledged them.