best model of Keystone 5th wheel?

My wife and I just bought a 2015 Keystone Sprinter Copper Canyon 333FWFLS after months of research. The first criteria we used was price. We were not interested in an $80000 fifth wheel, so we narrowed our selections to what we could comfortably afford. Secondly, I researched building materials and process. I wanted aluminum framing and foam insulation. The appliances and HVAC are mostly standard across the board in my opinion, so those were of less concern. The interior construction materials for our price point were pretty much the same across the spectrum of manufacturers. So far, we are happy with our purchase. After reading all the horror stories about new RV purchases, I did something I never did before and purchased the extended warranty.Time will tell if it was worth it or not. This is just my humble experience and opinion. Hope it helps....