Wish I could give 0 stars.
It took quite a bit of hunting on their website to find a way to contact their customer service. After that, although I was told that the average wait to chat with a representative was 4:02 minutes, I actually waited 20 minutes. When I actually got contact, it felt like I was talking to a robot that merely repeated stock phrases. Not a good experience. It is not worth the convenience fee that is attached to the ticket price.
I do not recommend using this service. It is incredibly difficult if not impossible to get a refund or a credit. Very disappointing, and will be sure to discourage everyone I know that is thinking of using it.