In how much time do you learn it?
If you already know ghostride, crossstep and peterpan it will be quick, because it is just a combination of this three. I recommend learning these tricks seperately and then trying a cassanova. The transition crossstep to peterpan could be quite hard, but on yt you can find tricktip for that (for ex. in recent Hans Woulter film) Good luck! ^^
You learn it in 1 day if you try hard
About 2-3 weeks .
5 day for me, you do try hard man !