My mother had to take it for a nerve condition and it fucked her up. Ruined parts of her nervous system and she required physical therapy to be able to grasp objects again.

She has now been in several car accidents since cause she goes into hazes and acts differently. I’m not sure it has good side effects other than being an incredibly strong tranquilizer and disassociative.
Lots of drugs are considered highly by their users but this one seems to have some pretty rough sides to make it sound at all positive to me.