I looked at it for awhile before talking to any one about it. The upper link is a arm attached to the top of the pumpkin with a new cover that is incorporated into the mount. The lower is an articulating control arm that utilizes the front spring hanger for its mount along with a bolt on spring and shock mount. The kit is simple and seems to flex well. They have been testing for awhile so the bug's should be gone.
Tera plans to have a six inch kit available with front and rear parts, or just the rear.
I believe it is a good idea and will definitely make a trail worthy contender out of the box, of course whether it will beat out a high quality leaf spring shackle combo remains to be seen. Both are safety orange and loaded with survival gear. Should prove to be interesting, the 99 TJ was not finished but looked good anyway. Pro Comp had their YJ coil Conversion on display and I checked it out briefly. Its a four link and is all bolt on.