I used Game Changer last year, all season, on my iPad. In my experience, there was a learning curve, at first I couldn't hardly talk when using it. As the season went on, I was able to multitask more, so talking and complaining about calls were still possible as the season progressed. In the beginning, I had to have the oppositions team, completely inputted before the game, as I got better, I could input as the game went on. You should make sure, atleast at first, to have someone take paper and pencil score as well. Also, the sun was a major problem for me last year, you really need shade due to the reflection of the sun on the screen. Little calls and situations will happen that will screw you up too, then for me, it would snowball because I would miss the next few plays. I know I have painted a terrible picture, lol, but it really is cool to review them after. All in all, it's worth the hassle!