We have a Winnebago, sister to the Itasca, but I'd take a good hard look at the Newmar now. Our coach has some design and build quality issues and the newer ones sound worse. It seems that Winnebago is struggling to keep up with demand. I love the floor plan of the 42QD, but there are some obvious flaws that I overlooked when I bought it.
Newmar might be running into the same problems where quality control slips to meet demand. It's something to keep an eye on and research before writing that check.
The 42QD floor plan was something special when it came out. Nobody had anything that I considered comparable. Now, almost everyone has a variation or copy of it. I have to give Winnebago credit for that. They created a mobile version of what we have at home. It's a very livable place to be.