We live in a 2 bed unit at the moment and are moving to a house, it's just DH, DD1 and myself. Living in a unit is actually great, IF you have space to get away from it all. You might also not have a dining room in the unit, and much smaller bathroom and kitchens (potentially / likely no bath, just a shower). All things to consider when you have two kids. Will the unit have a courtyard for them to run around in, or are there grassed areas in the complex? If not, prepare for cabin fever. It's also a real pain having to go down to the laundry in the garage, instead of how it usually is with a house. Just some thoughts from a unit dweller...