Nothing can really prepare you, all children are different and act in different ways.
It really will be the best thing to happen to you in your life, you don't truly understand unconditional love until your child is born, when each of by boys were born is the only time in the 34 years on this planet I have cried due to happiness, completely out of blue tears.
at first baby will want feeding very often, if you are lucky then it will be every 4 hours but I know children who initially wanted feeding every hour, it's hard to judge how much they are getting when breast feeding (assuming this is the way your other half decides to or is able to go), in my experience that subsided pretty quickly and both of my boys were sleeping through the night from about 6 months, just remember you may need to help with the night.
When you get to the stage of putting baby to bed before you two I would suggest you don't try to silence the house below normal levels, I have family members who used to turn the tv right down and be really quite when baby was in bed, only problem was any loud'ish noise would wake her up, as we have always kept the tv volume up, talk at normal volume and don't tip toe around both the boys will sleep through pretty much anything.
No baby is the same, you will both get to know what your baby likes/dislikes and most of all, don't worry, everything tends to fall into place.
Congrats