We bought a used 2007 40PDQ Endeavor in August of '07. Sold it in October of '15. The chassis, Cummins and Allison were flawless. Not on penny on repairs. The coach side of the unit did have some issues with fit and finish. Had a couple of bolts shear on the big slide. Had some leaks around door and windshield. Slide seals were really sub standard. No major system failures. Sound system and KVH sat system were junk. Did I make a bad decision purchasing it? No, it fit our budget and served our needs.
However, our current 2016 Winnebago 40R is light years ahead of the ol' Endeavor in fit and finish. The FL Maxum is a dream to drive even at 70+ mph.