Personally, I couldn't work without them. They are a godsend during my bleed days. (I'm on hrt
)
They are a bastard to get out but I have always managed. Don't laugh, but laughing helps! The more wound up you are the less likely you are to extricate the damn thing.
I have used Beppys (with the hole you hook your finger through, supposedly) but as I have a tilted womb this makes it worse and I find them much harder to get out. Gynotex are bigger and when I finish laughing (at earning money doing sex work on my period) I relax on the bed and then it does eventually come out of the 'corner ' of my womb.