When I first started poking around with Magento 2 my initial idea was to cover the backend functionality and the improved UI. Even though there's been a considerable modernization to the UI, it only goes so far to describe the actual merchant benefits of M2 over M1. Correction - it actually describes none.
The real tangible benefits are however all derived directly from its new structure. This all will bring benefits like faster TTM (time to market) and scalability.