Nearly unusable and disappointing
I also used it for the SAP Learning Hub to read course handbooks. Nearly unusable. It supports only landscape view, there are two broad horizontal bars (one content slider, one search bar) that hide valuable content. The search bar is without function. There is also no possibility to mark the content for later references. The resolution of the handbooks (text and images) is very poor within the viewer. The pages look like poor quality images. Beside the handbooks, I was unable to consume other content of the learning hub like online courses with animation and speech. So there is a lot of improvements for the future...
BetaTester79 about
SAP SuccessFactors, v5.9