We purchased a new 2014 35ROK in February, this year. Have made one trip to coast, 3.5 hrs away. Pulling with 2003 2500HD Silverado, CC with short bed and slider hitch, Diesel and Allison Trans. This trailer pulls great. I do not have the Airborne pin or a hitch with any shocks or air bags, but I understand it also makes a world of difference for the trailer and driver.
Anyway, to get to your question..We absolutely love this unit. It has all the comforts of a small home. Large living area, fireplace, tons of windows, walk in shower, king bed, practically a walk in closet, tons of storage in and out.
And yes, you will find things that make you wonder what were they thinking, such as,, no light switch's beside entry door ????, closest switch to door operates the ceiling fan.. go figure!!
The bath sink is hard to use because the medicine cabinet covers it by sticking out so far.(I tried to get a smaller replacement through FR, but have been told that this is the only one available, so wait for warranty to run out and then replace with one of my choosing)
Couple of things we have to deal with with since our solo trip in March are:
The theater seating was not bolted to the floor and it kept tipping forward, Have since bolted in down, (if you can get the optional LazBoy recliners, I would go with those).
Leaky kitchen faucet, (has been fixed), slides adjusted, changed the 3 step entry to a quad step.
Have a 30amp hookup at home, so I run the a/c's on occasion (one at a time) since the unit is a 50amp.
The 15K unit compressor has gone out and is currently in shop for warranted replacement (no biggie, stuff happens).
Would we buy this unit again, Absolutely. We have had a 2012 Shasta, 2013 Salem and now a 2014 Sandpiper and it is the best yet.
Don't know what kind of price you are being quoted, and I know I paid too much for mine, but they are all over the internet for around $43,000.00. Mine retailed for $63,000.00 with the options that came with it (according to the dealer, it has about everything although my research tells me different). I won't say what I paid, but if I had done some additional research, could have saved at least another $10,000.00. But hey...my dealer is 15 minutes away.
Also, check the tires for brand and manufacture date. Some are just better than others. Mine came with MasterTrack, built in 2013, so I am good with this. I also added a monitoring system to check the trailer and truck when towing. (Lots of info about tires and systems on the forum).
Not sure what to suggest about the tow vehicle. Although your truck has strong towing and weight capabilities, this trailer is a heavy rascal, pin weight alone at around 2400lb. Run the numbers, all kinds of help on the forum on how to do this. I did and I am comfortable with my tow truck.
The best camping seasons are now coming upon us, so get that 35ROK and enjoy it. You will not regret it!!