Free form rebar Revit 2021

Hi everyone!
Considering new features of Revit 2021 but also with what is given in Revit 2020, I would like to ask if someone has used some FreeFormRebar node in Dynamo, in order to apply rebars on a curved shape (in my case segment linings).
Thanks!

Federico

I have used it (though not beyond a proof of concept).