Behance has already a wide acceptance in the market. It is online, so no need to worry about exporting and stuff. And it is easy to upload new projects, allowing different types of files. And it is has a good ratio of customization/challenge to use; you are allowed to change the background, customize texts and stuff, but you won't have to worry about the layout of the portfolio.

Saubere Benutzeroberfläche und direkte Verbindung mit Adobe Portfolio, um Ihre Arbeit zu präsentieren.

The popularity & easy of use of the platform.