The Selene Vagi-Gaff?

Has anyone on the site actually bought and tried this?
How comfortable is it?
How comfortable is it to wear for, say, 48 hours?
Are there equivalent items that can be worn for longer periods?
How many of us as adults successfully and non-painfully can get our balls back inside?
I can't bend my penis comfortably down and under .... what do others do??

I can't write an upcoming story without real knowledge!!
Thanks for any replies
AP