One word: Amazing. I love the U/I: black leather holding colourful cards. The scanning process is impressive, I felt like a secret agent using this app while it scanned the business cards accurately.
It truly delivers what the app description said. Save the contact directly to iOS Contacts and integrate with the top 3 business apps. Minimise typing and maximise efficiency. It's worth paying because it really is working for you.
Do not judge it's app icon (yeah, it's not that pretty) but you can count on "SHAPE GmbH" to always deliver outstanding utility apps. I know we will see more great things from this developer.