Works great. Make tie-ins to the frame. Use 4 spreaders on top, one across the front hoop at the bottom of the windshield, and one on each side from the front hoop to the rear hoop.
Don't sacrifice glovebox fitting, etc. for strength, and make sure the welds are very strong. There's lots of tech tips on this on the board - do a search. But the Kentrol kit is not a toy - it's made out of 2", .120 wall D.O.M. mild steel tubing which exceeds NASCAR standards - the disclaimer is there for insurance purposes only.
Saved my life and my Jeep. When they go over, the front hoop takes all of the weight. First the Jeep lays down, but when it goes upside down, the engine is so heavy that it never leaves the ground, so when the Jeep is upside down, it's on the front edge of the hood and whatever else there is. Therefore, the front bar takes all of the weight - put strong frame tie-ins up there.
Chuck Hadley