I breastfed both of mine. No soreness and loved every minute of it.
It's instant and you can do it anywhere! Well I did!
I have to say I'm not large chested so when I was feeding it was always discreet and just looked like I was cuddling them. I had a friend who was very large chested and she couldn't get to grips with feeding as she felt her breasts were so prominent it was difficult to disguise.
The best advice I had was not to be namby Pamby and be firm in positioning your baby. If in the correct position it should not hurt or be uncomfortable.
With my firstborn, my son, after I had given birth I placed him to my breast and he wouldn't suckle. The nurses called him lazy and said some babies expect the milk to spurt out and you have to be firm in getting them to latch on!
I was outraged that my precious little boy was treated roughly as they shoved him on my breast and made sure his nose was pressed firmly onto my breast, but after a few days of my being namby Pamby with him, I realised that if he was on firmly he would feed and I would feel comfortable too!
The trick is to position them so that the nose is almost squashed against you but you can see that their nostrils are not obstructed, well one nostril as you look down on them! that means they are in the correct position and you won't feel any discomfort.
My son is now an adult and I miss breastfeeding, I enjoyed it so much, that closeness and feeling of nourishing my child.
I hope you enjoy it, for however long you do so. Just remember that position is key.