I am so sorry for your loss, it's a really shitty and scary thing to go through when you didn't know anything was wrong. Here's my story, I had a positive experience for the most part, and would choose this option again if I had to.
I had one in December. Baby died at around 6 weeks, I was 12 weeks when we found out.
The procedure itself was fine, I was given a private room (unfortunately on the labour ward, but it's a small hospital) and spoke to a nurse and an anaesthesiologist. The nurse then gave me a tablet to take (I think to soften my cervix) which caused me to bleed lightly, and was asked to walk down to surgery. Once there, I was given a gown and stockings to put on and my clothes were bagged up. I then waited a few minutes and was then sent into surgery.
The surgery itself went ok, the anaesthesia team were so sweet that they made me cry. The cannula was a bit painful but nothing too bad. I went to sleep really quickly and woke up in a recovery room with some other people who had had surgery. I then waited in there until they took me back up to my room on a gurney.
Once in the room I was asked to eat a sandwich, have a wee and have some water and I'd then be allowed to go home. Sadly, they forgot about me so DM went and bought me a sandwich herself and once I felt better (and got sick of listening to the woman next door giving birth!) I asked for the cannula to be removed and discharged myself.
Like a PP said, my throat was sore from the tubes for a day or two. I had some pain in the first day, just cramping, but not unmanageable. I bled for eight weeks which is at the extreme end of things, mostly light or period like, but a couple of times very heavy with large clots. I called the hospital a couple of times to check it was all normal and they weren't worried.
I was signed of for two weeks, but as it was just before Christmas, I asked to take another week off and then had the holidays.
It was harder emotionally than physically and my main source of anguish was being uninformed about what would happen to me afterwards. I now wish I'd asked this question beforehand!
For what it's worth, I waited until my period came back (10 weeks after surgery - but again I think this is extreme) and conceived next cycle. I was only told to wait one cycle to try again, even though it was my third consecutive miscarriage. I'm now 19+4.
I really hope it all goes ok OP, in my opinion you've chosen the best option as it's usually so much less traumatic. Good luck 