There are Pros and Cons some have been covered. Pros being your not sleeping on the ground, easy setup and put away, don't have to store in your Jeep. Cons being weight or fitment affecting the Jeep some on Extreme trails, ladder to get in/out, price can get high.
But overall it's one of my favorite mods to my Jeep, Price : I waited for a sale got my rack (Kargo Master)and RTT (Smittybilt)1300-1400 range. Weight- doesn't weigh anything outrageous different sizes vary.
It's definitely convenient and comfortable and I do enjoy that I can practically setup camp relatively anywhere and in a reasonable time, weatherproof.