I'm not running their kit but I am running OME's Nitrocharger shocks on my 4" Currie kit and they really helped my TJ's handling. I won't say their ride is cushy but neither is it jarring like many other commonly used shocks are. Pretty much everyone running OME's products love them though.
But for 4" of suspension lift, I strongly recommend you simultaneously install a SYE kit and longer CV driveshaft. 4" is the height where that becomes something you should do.