Raising4, My DW and I strongly agree with your perception. We too owned a popup with the same dinette setup. Once we started looking at a full trailer we found the 2011 X23j, at a RV show. Weren't ready to buy at the time but by the 2012 RV show, the interior had changed. In the 2011 the dinette is on the side opposite the couch, where the kitchen is on the 23b. (if you google images of x23j you will see what we mean) We are much happier with this setup as it doesn't interfere with the bunk end. We consider ourselves very very lucky to have found this used model in 2013. Ironically enough, we are the third owner of this very well maintained unit.
Jayco Jay Feather x23j
2011 F150 4X4 Screw, 5.0, 3.55 rear axle, 6.5' bed.