I had an emergency vertical c-section. My exterior incision is about 24cm long, not sure if the incision in my uterus is vertical or horizontal; I didn't know to ask. Mine was the result of a head-on car accident at 26 weeks. So grated I didn't carry to full term, but I did have lots of abdominal trauma to recover from. I was home from the hospital in 29 days (because of other damage done), but I was up and walking after a few days. My scar is completely healed, and I have no abdominal pain now. I don't have a previous pregnancy or c-section to compare my experience to, but if it results in a healthy baby I'd say it's worth it.
Good luck!