I just noticed that Rotary is on sale right now until 18th March. Down from €79 to €49 so I demoed it tonight. I couldn’t fully decide if I preferred the IK Leslie over this one. Probably the IK Leslie, but there was something about this one that I liked as well, so decided to get it whilst it was on offer, so I have the option of either.
In fact I liked running both of them together (I had them in my Cantabile rack, turning them on and off, and occasionally tried them together. That gave a really complex sound!
And I now understand what you mean about the presets!