Phase 1 will be simply checking patches and Combis and learning OS basics. That alone will probably last the free hours of not so few days. Here at home I could listen with the head-phones I know well (AKG K 702) and am really, really impressed by the clarity and directnesss of the overall sound character. After some more hours of use (I already had some on a testing device), despite just beginning the exploration, I can tell one more thing already now:
This „thang“ is an incredible treasure chest of sounds and sound shaping possibilities! The different engines do not just sound like some more ROMpler sounds for different areas, but give the sound spectrum quite a stunning range, letting you dive into completely different sound shaping worlds. It really sounds like several keyboards in one, and not just like one with many different sounds. You get great sounding bread-and-butter sounds, warm vintage stuff, cool FM soundscapes, and at will wild and crazy stuff.
The second thing showing itself: you are immediately in sound shaping heaven: well accessable parameter pages up to complete synth architectures, on the fly, a small-but-well

That’s really a sound shaping pleasure ground directly at your fingertips!
I’m only just beginning, but I can’t deny that this is something that is MUCH FUN!

Hope to add more substantial things after getting into it a bit …