Of course 
It took about half an hour once I was in theatre. Had a local and wasn’t offered sedation. The local being done was actually the most painful bit and it was over really quickly. I hadn’t had a local before and got really bad shakes which lasted several hours afterwards but I was sent home after coffee and biscuits and felt okay that night. I then had some cramps and a bit of bleeding for a couple of days. Annoyingly I got an infection, pain in my upper abdomen but no other symptoms, a few days after and it cleared up with antibiotics.
They put the cervix opening suppository in a little while before you go into theatre so it’s soft and open before they do the procedure. As it was my third mc they took some tissue samples for testing which probably made it all take longer so without that it could be around 20 minutes I think.
The staff were incredibly kind, I cried the whole way through and a wonderful nurse stood by my head and held my hand and wiped my face.
Obviously, it’s a shit experience. The reason you’re having it is awful and while I didn’t find it painful after the local was done it’s uncomfortable. They did a TV scan once she’d finished to check everything was out but I don’t know if that’s standard. I’d had really severe pain from tissue getting stuck for a few days before I had the surgery.
In comparison, the ERPC was much more comfortable and far less traumatic emotionally. I’d had a GA a long time before for something else and wasn’t worried so as soon as the mmc was found, again, at the scan my consultant straight away said he recommended doing it under GA asap and I didn’t hesitate. With my first mmc I’d had twice failed medical management, really really bad pain and then the MVA and the second time I didn’t want to feel a thing. It was in, pre op checks, bed, into theatre, lovely anaesthetist and out like a light, then back on the ward pain free, minimal bleeding and home after the inevitable coffee and biscuits. I felt great coming round, so rested and comfortable and the recovery was quicker and easier - again a post op infection so I’m not blaming either procedure or surgeon, I was just unlucky.
I do completely understand your fears about a general, it’s a big deal. But if both are available I’d strongly recommend it.
Either way the staff will look after you and do what they can to make you comfortable. Having been through both my feeling is that losing a baby is hard enough without being aware of going through the process where they take it out of you and as the end result is the same I was glad the second time to be none the wiser about the details and wake up with it over to then start processing the grief.
I hope that’s not too graphic or upsetting. Makes total sense to focus on your options and being practical. It’s a while since I went through this but at the time there was very useful information on the miscarriage association website while might detail the options. My hospital gave out leaflets by them. They also have a phone line with limited hours so you could call them. They should have up to date information.
Happy to answer you can think of. I’ll check in on you.