Well, I just did a little "stalking" and read many of your posts here to the forum. I did this because your situation interests me greatly. We also made the switch this summer from a popup, which we used for many years, to a Flagstaff MicroLite 23LB - same trailer as you.
My advice to you about your first trip: trust your research and just go out and enjoy yourselves! This is supposed to be fun! Yeah, you'll find that you forgot some things, and it may be that some things on the trailer don't work exactly as you hoped they would, but don't sweat it at this point. Focus on the reason you're doing all this.
Have a great time!
(I've been blogging about my first travels
here.)
-Speak