My first two were 13 months apart and then 10 years later my next two were 15 months apart, it really wasn't that bad. Yes you will have rough days where everything is overwhelming but I think regardless if they are close in age or years apart you will have those days. My two youngest are both toddlers now and they are best friends.

Although my second isn't quite here yet, my first daughter will only be a year and 2 months when my second gets here, so I can't say from experience, but I know it'll be a whole lot different.

my son will also be 2 when the new baby is born .

but that might have just been me

honestly it's not too hard...Tom they both are mobile and conspiring against you. That's when it gets interesting