Sooo many wonderful things! They far outweigh the bad things.

The look, smell and feel of your new bubba is the most amazing thing in the world.
They look at you like you are their whole world - because you are.
Their firsts of everything (smile, laugh, giggle, wave, rollover) are priceless. I SMSed all my family and friends when DS rolled over for the first time

Some coping strategies:
-Somebody already mentioned this, but once I had resigned myself to the fact that I WOULD have to get up two or three times for a feed during the night, I dealt with it much better.
-Accept any and all offers of help. From your partner, parents, siblings, neighbours, friends - whoever.
-Forget about the housework. It's the most patient thing in the world, it'll wait for you forver
-Rest whenever you can. Try not to schedule a lot of stuff so if you have a crappy night, you don't have to be anywhere the next day. I stay a lot calmer after a bad night if I know that I have the next day to recover.
-Listen to all advice, but discard things that don't feel right for you. I found that if you just let people tell you what they wanted to, they are happy. They never need to know that you disagree with them.
-Most of all - listen to your instinct. I disregarded all the advice of Mothers' Group nurses, most midwives etc etc and feed and cuddled DS to sleep until he was 8 months old. This is what just felt right for us.

Bub will only be a bub for such a short time so enjoy it!