How is it to move in with your Significant Other?

Chels
I'm about to move in with my boyfriend of a year and a half, into our own house. I'm curious to any advice on how to adjust and handle things, I know we argue a lot (we're so much alike we can't stand it, and ironically, where we are different, were polar opposites) we're happy and excited, but I'm curious as to what it was like for others to make and commit to such a change. I know this is going to challenge us greatly, so any advice or stories would be great.!! :) 
P.s: if you don't agree with our decision, that's fine, but please understand, it's my life, I will do as I please, and I feel this is right for us. so any bashing or rude comments are uncalled for and a waste of your time. I'm sorry, but that's just the way it is. Thanks for understanding.!!! :)