As with many things related to travel, most of the time it works and nobody really cares, some smaller percentage of the time it's an inconvenience customers w

As with many things related to travel, most of the time it works and nobody really cares, some smaller percentage of the time it's an inconvenience customers will grumble about but put up with, and then very occasionally it's a deal-breaking experience. If you don't travel that often, chances are you had a bunch of "it just worked" experiences and maybe one or two "grumbly inconvenience" ones.