This. I think the same of any tongue & groove flooring (including wood).
It's quite difficult to source decent real floor boards these days. Everyone assumes you want click clack Lego flooring
Laying the floor is easy. I did an 18ft x 12ft room in about a day & half using hand saw & rubber mallet & gluing joints.
2 things: 1 is your floor level - as this is critical to making it easy / a good job
2 - will you remove skirting boards & replace over new floor? This looks & lasts much...
It's unlikely to dry out & go back down. It will dry out but will stay swelled.
It depends how it's laid (joints glued or not, & direction of joins) on how much you need to take up to replace - do you have spares/ a colour matched board?