Real owner here not some interweb want-to-be truck expert.
I have about 14,000 miles on it now (see sig for truck stats) and have loved every mile of it. makes 27-28 MPG highway without any problem and @ 77 mph! Try that with a Ecoboost, never going to happen. Towing my 24' Larson boat weighing in @ 6,200#+ it pulls down 17-19 mpg @ 65 mph again the EB can't come close to it.
The ride is also in a class of it's own, neither the Ford or the GM can come close to it. Even my Dad said it rides as good as his 2014 Caddy! Has the best sat/nav system, the Uconnect rocks and unlike what others have said I like having the nav integrated.
As far as payload my loaded Laramie has a door sticker P/L rating of 1085# and tow rating of 7850#. Go over to the ecodiesel forum and there are guys towing well over the ratings. I don't, won't and would not recommend it but we have one guy towing a 10,000#+ TH with his.
Like the Ecoboost this truck is going to prove itself to be a very good towing machine. Yep the Ecoboost is a very good truck and so is the Ecodiesel.
Towing a 5000# RV is not a problem for this truck. Again go over to ram1500diesel.com and check out the towing section to see what these trucks can do.
Here are a few pics of her.
Don