I'd be interested to hear about poor let-down, too.
In response to 2.:
I was adamant I wanted to BF. DS was born with meconium in the water, so we were kept in for 24 hours. I couldn't get him to latch on because (I now realise) my boobs were so big, and he was such a small baby.
I remember walking up and down the ward corridor with him screaming in the middle of the night, and a midwife walking past me, sucking her teeth and saying "that baby is hungry". That was the sum total of the support I received in hospital. (This is Kings, too, where they don't provide formula except in emergencies, and are aggressive in their promotion of breastfeeding).
Like an earlier poster, I never leaked milk, ever, and could only express 2oz a day, once DS got to about ten weeks old.
We eventually got the latch sorted out in a couple of weeks, but I had sore, encrusted nipples and it was agony. I also had to use two hands to feed, as my boobs were so big and - ahem - have never passed the pencil-test.
Feeding out and about was a nightmare. I was totally unable to do it discreetly, and still fail to see how I could sling-feed when my boobs won't stay in the right place.
Made it to eight months, but switched to mix-feeding at four months due to repeated bouts of severe mastitis.
I found the whole thing a nightmare, but am going to try again in November when my second is due.
What would have helped: a Breast-feeding cousellor in the hospital. The midwives were - not to put too fine a point on it - useless old trouts to a woman.
Sorry for the long post. Didn't realise how worried I was about doing it again until I wrote this!