BETTER than expected- Highly recommend! After reading the other reviewer's comments, I was hesitant. However, I tried it anyway. After all, you get a 15 minute trial period to get a refund after it installs. It downloaded perfectly, although it took about 6 minutes over WIFI due to its large size (475MB for about 58 videos in this app). Once downloaded, the app fired up and ran without a hitch. The videos were clear and each lesson was exactly what I needed. There is a lot of material here and well worth it if you need a refresher or to prepare for an exam.
DO NOT BUY I brought this app and it did not work nor did the owners/techs help to fix the problem. They just took my money and ignored me emails.
Updated with latest SDK.