Welcome and congratulations! I have posted the online the 2019 Cadillac XT4 Owner Manual so you can read ahead how to operate the features. Up to now, most new XT4 owners love their purchase. I am waiting for my local GM dealers to offer the XT$ than I will wait until a hybrid/EREV/electric model arrives, as I have a 2009 Chevy Equinox to trade in, and this Cadillac is similar in dimensions (the XT5 is bigger).
Enjoy your purchase, and post plenty of experiences here.