I breast fed twins after a section. I don't think the section had any impact on feeding at all.
I think understanding the reality of breastfeeding a newborn is crucial to success. You need to be prepared for how it will be, so that you're not surprised when certain things happen.
The things I wish I had known in advance:
breastfed babies might feed for an hour or more at a time, particularly in the early weeks.
Breastfed babies might need to feed every two hours or so (timing from start of one feed to start of next), so the "free time" between feeds might be very short.
Sometimes the gap between feeds might be minutes not hours.
Sometimes the baby might feed constantly for hours. This is particularly common in the evening in the early weeks.
Sometimes the baby might have a growth spurt and feed constantly for the whole day/night.
Feeding will make you hungry! Arm yourself with healthy snacks or you'll eat your body weight in biscuits every day.
Sometimes your baby might only feed for 5 minutes instead of hours.
It is possible (once you've had a little bit of practice) to go to the loo without stopping feeding. You can also open the door to the postman and sign for a parcel while feeding. Sometimes the postman will blush.
If you offer a bottle to a breastfed baby and they guzzle it at super speed, it doesn't mean your baby prefers the bottle or that they were starving before it. The way that babies take milk from the breast means the baby actively takes each mouthful; if they don't make a move then no more milk comes. In contrast, the way the bottle works means the next mouthful is delivered unless the baby stops it; something breastfed babies are not used to doing. So downing a bottle fast is more about not knowing how to use a bottle than being starving or loving the taste of formula (google for videos of the differing mechanics).
If your breastfed baby is small, people will say you obviously don't have enough milk. If it is large, they will say you can't possibly manage to breastfeed such a large baby. These people should all be ignored, unless it is someone knowledgeable about breastfeeding who thinks your baby is small because of not getting enough milk.
Breastfeeding isn't a 'get out of night duty' card for dad's. Part of the exhaustion comes from sleeping with one ear open for the baby, so if you can sleep elswhere and have dad bring the baby to you for feeding then you'll be less tired because your sleep between feeds will be better quality.
Breastfed poo is much much less offensive :)
There is a book called The Food of Love, which takes a lighthearted look at the realities of breast feeding. It is worth a read in addition to the more technical 'how to' information you might choose to read.
Good luck with your birth and baby :)