The ability to have one place for all your sales data in real-time was very helpful as we were trying change over from an excel driven solution without any success at first try! It would be great if they could make it work with google analytics so that you can pull this info straight into Google Sheets easily instead of having 2 separate systems (Adsense/Google Analytics).
We had been using Excel spreadsheets but wanted something better suited towards our needs - especially when dealing wtih multiple channels like Adwords & Facebook ads etc.