We replaced our Dometic New Dimension with
this Samsung in December - it's about 3" taller than the old one, but otherwise a perfect fit. Our old one was on its last legs, so it was just scrapped.
It'll be a tight squeeze getting it into your rig unless you have a bigger door than ours - the folks who did the work had to remove the passenger-side window and bring it in lying down on a forklift. The installation cost was just about the same as the refrigerator cost. BIG bonus - the Samsun is about half again as big as the Dometic. We can store more stuff!
al