I love HDR and purchase every HDR app and always give it a try. The picture quality that can be achieved with this app is absolutely the best. But the usability is not the best. After every snap of a picture, you must go through nearly 15 adjustment options to get the picture to look nice and save it. I wish it had predefined presets and/or the ability to have user presets that I could quickly tap and save once reviewing the picture, then just be ready to snap another picture. The app vividHDR usability blows this app out of the water, but this app has the ability to create better image quality.
jClabo about Fusion - HDR Camera