Congratulations on your new TT.
We used to own a 2004 Cougar 5-r. It was a good mid-level unit, not without little nit-picky things that went wrong, of course, but we were happy with it.
Get yourself EMS (Energy Management System)
(portable or have it hard wired) to protect your TT & it's appliances from surges, high/low voltage, reverse polarity, open neutrals....etc. All the things that can go wrong when you plug into a campground's (or any place else's) electricity. You don't want problems with the electrical supply to take out your A/C's, audio/visual, appliances that will cost thousands of dollars to replace.
Enjoy your new Cougar & post often of your travels.