I own an iPad 3. I purchased the full pack including the ad ons for a total of 17 pianos. They did a decent job of sampling these pianos. With 64 voice polyphony, these are very usable pianos. They sound as good as, and even better than, some single pianos I purchased for my pc. For $24 bucks( I got the expansion pack on sale) for all these pianos, they're a great buy!