Sadowick of EDM Tutorials has posted a video in which he compares the sound of the Roland JP-8080 synthesizer with the beta version of u-he’s Diva 1.3, which includes a digital oscillator.
The latest public beta of Diva (including the new digital oscillator model, UHBIE filter model, and added arpeggiator) is available to download at the u-he forum at KVR Audio.