Garageband, Amplitube, Ampkit, Nanostudio, JamUp, Multitrack DAW, and all the other ios based recording/production apps have their own set of pro's and con's. I have found that using each apps strongpoints in conjunction with the other apps proves to be a solid way of creating something that sounds amazing...although a little time consuming sometimes! I deal in ios based recording everyday, with various apps, so any questions--just shoot.