I had two, they were both planned, but the second, DS's birth, was officially 'emergency' as he decided to come out about 12 hours ahead of schedule! I had them because I have a congenital issue with my hip that meant the whole pelvis area might just not have done what it's suppose to during birth, so it was better not to risk it (also, DD was in breach as things turned out).
I have to say I found recovery much easier than expected, even when I had a toddler and a newborn and came off painkillers quite quickly. I had been warned I wouldn't be able to lift anything for weeks, but honestly I can't think of anything I needed to lift that I wasn't able to in those first few weeks. And you won't be out of the house and driving for a bit anyway.
I really liked the sections, TBH - I was able to play music I wanted as my babies came out, be chatting with all the medical staff during it and even the 'emergency' one was very relaxed.
Recovery for planned ones does depend a lot on how well the incisions are done (my first ones were done by an obstetrician who I had been told by other medics was especially good) and sewn up and it is complicated. Obviously if it's an emergency after dozens of hours of labour I can imagine it's much harder physically and emotionally.
I had the odd stab of mild pain in the scars in the first few years and the outer one slightly itches occasionally, but otherwise fine.
My main advice if you have a section is have DP or someone with you when you're recovering. After DD was born I said it was fine for DH to go and call everyone so he was away for a while and I was lying there all woozy and a bit overwhelmed, which I hadn't accounted for. Next time round I requested he stay with me.... which was a bit easier as it was 3am anyway!