I got my 2016 29RKPR in January '18. Tows nicely with my '16 Ram 1500 5.8L Hemi (Bone Stock / Trailer Package, 9,500Lb capacity). I regularly camp in the mountains of Colorado at nearly 10,000ft, and my driveway is 1/4 of a mile at 12% grade uphill.
Things I noticed: The carpet staples are loose around the edges. The stock sound system is crap, and I am replacing. The stock water pump is noisy, and I have replaced with a Shurflo. There is no place to inject antifreeze in the water system, so I had to install one under the master bunk (The water pump is on the driver's side in a compartment just aft of the storage).