This is #1 for us.
Obviously I've not been heavily pregnant or through labour, newborn phase, terrible twos etc yet but the plan is to have another in about 5 years or so.
If the next one is another girl we may get tempted for #3 as I would quite like one of each, but we'll wait and see.
I'm an only child and love it, so wouldn't be against just one, but I think I'd like a couple and I know DH would like 3 ideally.