I love that you can set your photos & videos to music! This is an addicting app and easy to use. The only downside (which shouldn't deter anyone else) is that I'm experiencing crashes when the preview is loading & when it's in the saving process. Sometimes I'll have to start over but most times it just picks up where it left off. I don't know if this is so much an app issue as it is a 4s issue, since I've been experiencing camera & video crashes since the last major ioS update. Overall this is my new favorite photo app & definitely worthy of five stars!