LOVE the coils in my 2014 Ram 2500. Towing the same trailer back to back with my 2006 Dmax leaf spring and my Hemi and the difference was night and day. As the years tick by it's tough to remember the ride with leafs but I definitely remember the first few tows and how great a feeling it was. The leafs are more jarring and bouncy. The coils are just solid and smooth. Still plenty stiff but more controlled with the coils. The truck squatting was not a problem at all but I did get a set of airbags to help stiffen up over bumps due to towing a 5th wheel that puts me right at my max weight. I had the same bags on leaf spring Chevy for the same reasons.