My birth was a horror story which I have posted about elsewhere, BUT I am glad I had the synto drip. it was an intervention I needed.
I was overdue, too, refused induction, opted for monitoring. I was booked for such a scan on term+14.
I ended up with contractions the day before, but made little progress over the next day and a half.
Turned up for the scan, still getting contractions, and placenta was fine but liquor was low.
This can mean the baby's kidneys have stopped working and so I was kept in but allowed to keep going with labour (no interventions) as per my request.
Eventually though, progress was so slow I was offered the syntocinon drip (since my waters had already gone after an ARM). I was on it for ages but he was eventually born a full 16 days overdue and weighing an eye watering 10lbs 5oz.
He was so bloated we joked he must have drunk all the amniotic fluid. His meconium poos were certainly not tarry. They were runny.
I suspect he was in a poor position and not putting proper pressure on the cervix to allow effective dilation. Going so far overdue made him big, too.
I had a lot of interventions to get the large-headed little hippo out but the synto duo was the one I was glad to have. In fact, it ran out during my long 2nd stage and all ctx stopped, so it was off to theatre for forceps.
I did have an epidural with the drip as I'd heard an augmented labour can be more painful, but the epidural failed. However I didn't find it more painful, so just had gas and air (for hours. It was a looooong labour) and was fine on it.
He was too big to push out after 70 odd hours so it ended up being a forceps delivery but the syntocinon was the one part of my labour interventions I was glad of later and still think I needed.
I actually found pre-labour ctx more painful than syntocinin ones due to his poor position, so a syntocinon drip doesn't necessarily mean a bad time.