My husband and I took on the task of tracking stats for our daughter's select soccer team, and after the first game during which he struggled with a paper chart and trying to find the right column, player, etc. while also watching the game, I said, "there's gotta be an app for that!" I found ScoreSoccer, and once we conquered the slight learning curve, it's proving to be very useful. It's quick and easy to enter events, I love the running clock and automatic time tracking, and the user interface is generally pretty intuitive.
My husband wasn't sold at first because he had a hard time figuring out how to enter the data, but when I pointed out that with the old school method he'd still have to transfer the handwritten data to a spreadsheet and build a bunch of calculations to track playing time etc., he agreed this is the way to go.
I'd like to see an "other" option so we can track goal kicks per our coach's request, but other than that it's pretty darned awesome. Oh, and editing the sub time in the events doesn't change the playing time tracked, but that's not something you'd normally need to do. When we contacted Rare with our questions, the response was quick and thorough; great support for a great app!