Welcome to our campfire, and congratulations on the start of some really great adventures!
What dealership did you buy from?
It it was from MHSRV: they have on-site lots where you can camp for a couple of days, and make sure that everything is working, and you've got the processes figured out.
About the delivery process...
Make sure that:
1. every system works as it should
2. every system is fully explained to you
3. See rules 1&2...
If you can have someone videoing the delivery system: it'll give you a handy reference later.
Good luck!