Not sure whether this will help, but I would have appreciated honest facts rather than the rose tinted stories that often get told! My third child is 10 weeks old and happily breastfeeding.
The pitfalls that I think you need to be aware of are that with 2nd and subsequent children, it is common to get after pains whilst breastfeeding as your womb tries desperately hard to contract following the birth. Hot water bottles and paracetamol can help, and the pains should go within a couple of weeks.
The other problem I encountered that almost made me give up is the pain of sore nipples as the feeding starts, again this was just in the first couple of weeks for me. This is mainly as a result of the baby not latching on correctly. Your midwife can advise. If latching on is hard to do sucessfully, take the baby off and try again until there is no pain - it may be a traumatic 5 minutes of trying, but it will be worth it to avoid the pain! I can also recommend a fantastic cream to help with sore nipples called Lansinoh - its expensive but well worth it, and it goes a long way.
I almost gave up after a couple of weeks as the pain and discomfort was so bad, but I continued and still going strong at 10 weeks. I am delighted to say it is now a pleasure and a delight to feed my daughter.
Not only do I feel so proud to have stuck it out, knowing that I have given Poppy the best possible start, but going out is a breeze compared to bottle feeding, no prep! Night time feeds are totally hassle free and she feeds before she even has a chance to cry - not possible if the bottle has to be warmed etc... Not to mention it helps the baby weight come off quicker!
Best of luck - hope it works out for you - it will be so worth it......