best pack and play?

Angela
We are going to use a pack n play instead of a crib. I like the ones that have nappers and changing tables on them. Which is the best? There's SO many different ones! How long can the baby fit in the napper for from experience?? I've read anywhere from 3 weeks to 5 months! I want to get my money's worth before they are sleeping in the actual pack and play. Thanks!