Scan Disc makes great products. How can you go wrong? I use them in my Canon D5, D7, MacBook Pro, and now my Go Pro Hero 2. I record SCCA Solo Races and use the video to review my performance. I also post my best runs on Flickr. I own 7 Scan Disc memory cards and have never had one fail.
What's great about it: reliability, reliability, and reliability
What's not so great: Eventually, I will be switching to the mini cards