Congratulations on your purchase! Campers are friendly people. There are a lot of RV related videos on YouTube that are very helpful. Like everything they can be bias as well. Good luck with your Premier. After a couple months if you're still happy with your purchase and the dealer treated you well take a few minutes to write a positive review.
Had a forest river 2014 rpod178 and now own a 2018 crossroads sunset trail 210fk.
Personally feel the 210fk is better build than the rpod with better features.
Keystone and Crossroads are separate companies but both are owned by Thor Industries. Like Chevrolet and Buick are both GM cars but different companies. As to the way they are built I have toured the Forest River plant and the Crossroads plant 2 years ago and they are built about the same. Just like anything you have good and bad. The big factor is the DEALER !
(and/or) the QUALITY OF the Management/ Staff/ Parts and Suppliers ???????????