When iOS 8 was released, Apple, for some reason, decided to remove the ability to shuffle photos during slideshow, and the feature has not returned since. This app gives you the shuffled slideshows back, and it does it beautifully! I love the extra customization we can get with the slideshows, such image backgrounds, a list of duration per slide (which are far better than the scrubber the stock photos app provides), the option to have the photos fill the screen. This app is wonderful!
The only thing I can suggest for this app, is the option to choose more than one album for the slideshow. And being able to select individual photos like you're able to in the Photos app. A workround would be to create a new album and do it that way.
Other than that, excellent app!