Enjoy it. Been on one trip in ours with two messy crisp and biscuit eating wallet drainers.
My advice is to keep a brush handy and just give it a once over every now and again - plus no shoes inside!
Main thing as said above is relax and enjoy - I’m trying not to be too precious because, although it cost a shit load - the kids don’t know or care about that!
keep us posted how the first trip goes