Terrible usability/design. As soon as it runs, it starts backing up all photos, rather than asking you which folders you want to backup first. For me that meant it started backing up other people's photos from WhatsApp, album covers, etc. I then had to deselect the folders one by one. It will also still show you images from folders that you don't want to backup, meaning the photo app is littered with photos you don't want to see or save, and you can only hide them one by one.