Check your search bar, you will find out that there are not a lot of fans of the Rough Country products. They ride exactly as the name states, rough.
That kit is the cheap way to lift your Jeep... But just remember you can not value price quality.
To lift your Jeep 4 inches or over it's suggested that you go with a slip yoke eliminator kit and custom rear drive shaft. Couple that with the adjustable control arms needed to adjust the pinion angle, and adjustable track bars...you're looking at well over the 500 dollar hope mark.
Will that kit work, sure it would. You wouldn't be the first person to install that kit in a Jeep. The real question is, could you handle the way it's going to give your Jeep ill road manners.