I took off the Bilsteins on my Monaco gasser and installed Koni FSD shocks.
The Bilsteins are nitrogen charged so they offer resistance to even the slightest road joint, which is then transferred up through the steering wheel. The Koni FSD shocks are NOT gas charged and absorb the road joint impacts offering a smoother ride.
On large bumps, I did not notice any difference between the Bilsteins or the Koni shocks.
Occasionaly I read a post on this board where someone says that their Koni shocks worked well for XXX miles, and then they changed them. As a point of information....Koni shocks have a LIFETIME warranty to the original purchaser so if one or all of your Koni shocks fail, you get new replacements at no cost. The Bilstein shocks also come with a lifetime warranty.