I purchased the iPhone 11 pro custom phone case from them a few weeks before Christmas for my wife. It came quickly and was not damaged. However, the image on the case was total garbage. It was WAY darker than the original, blown out and pixelated. The website does not support uploading a large uncompressed raw file which does not help with their terrible print job. It really feels like they printed the case using an at home printer.
Stay clear, just use shutterfly.com.