My girls are 5 and 2 and the little boy is 6 months in a week. Biggest benefit is how much closer the girls have gotten. 2 months of only sporadic daycare means they're playing with one another 16 hours a day and quickly becoming best friends (and occasionally bitter enemies). Five year old is a terror on her 8-speed and is quickly learning to cast without hooking her dad and the 2 year old is quickly mastering her balance bike and learning not to chew on trash she picks out of the pond. Wife and I are are on dramatically reduced work schedules, so we're also getting to spend more time with the boy child in these first few months than we did with the older two, which is fun.