We're Sundance owners. Here's our list of Pros & Cons:
Pros: Light, but sturdy; tows easily behind a 3/4/Ton; nice floorplans; nice price point; nice interior touches - solid suface countertop, etc
Cons: Light, feel movement a little more than heavier rigs; less storage than a bigger rig; fewer high end options
Overall: We like it and it's great for weekend/short term camping. I wouldn't full-time in it however.