We have a 2014 320RS purchased in June of 2013 and have been pleased with it. Thus far we have traveled with it approximately 7000 miles. Leaving for Texas later this week. My tv is a 2002 Ford Super Duty with a 7.3 diesel and a short (6 and 3/4 ft.) box. I do have a slider hitch but haven't had a need to use it. Here are some figures on actual scale weights taken when fully loaded. Trailer wt. 13,700 Pin wt. 2,840 Weight on rear axles of trailer 10,720.
Options that we added when ordering the trailer are: Bedroom AC, Thermal Pane Windows, JT stabilizer arms, Bike Rack, Fireplace, Upgrade mattress. We enjoy the unit and spend about 6 months of the year staying in it.
There have been some minor issues with the RV but was handled by the dealership without a problem.
Hope that this helps with making your decision if you haven't already done so.
2002 F250 Ford Super Duty 7.3 PS (67K miles)
2014 Palomino Columbus 320RS Grey/Charcoal
Nights camped in 2015 98 and counting
Nights camped in 2014 186
Nights camped in 2013 130