Yup. The Northwoods chassis (which includes Outdoors RV) is simply more robust than anything else on the market. Frame rails are taller, thicker, and gusseted at all suspension points. Plus you get shocks and some models now have cushioned equalizers (I had to upgrade mine to EZ flex myself).
I had a weekend warrior previously, with half the frame even though it could weigh 50% more. It broke. Before that, I had Jayco, and it's frame eventually started sagging behind the axles. But that was after the water tank fell out the bottom, and one of the side walls started to collapse and had to be rebuild. At this point, it would take a lot to convince me to buy anything not on a Northwoods chassis.