All of the ones I've experienced are not what I would call harsh. They do a pretty good job of taking the sting out of bigger events, it is the small events that suck. Coarse pavement, small rocks, gravel, pocket change laying in the road, all show up as annoying when the tires run over them. That isn't harshness though.
Just put on 5100's and this is exactly what I am feeling. Feels like something is wrong with the Jeep as the road surfaces change. You feel all the small stuff. Thought I had vibrations after installing them, but it's just the shocks transmitting the road surface. Drove on smooth, new asphalt and the Jeep feels perfect.