Trucktrend.com has a nice review at http://www.trucktrend.com/features/travel/163_1312_2013_dynamax_dynaquest_model_340xl_road_test/
The contrast between the op's opening comment of "Since this section is all but dead lately" and truck trend's opening comment of "The Super C class of motorhomes is gaining popularity" is interesting. The only volume Super C I know of right now is the new offering from Thor and it seems to be moving slowly. I don't see the "gaining popularity" from where I sit, even though I wanted to buy one and finally gave up in frustration at the lack of availability.