I have tried to refrain from saying anything about this lift. Particularly on another board where I would be banned for saying something bad about it. But....
There is no doubt though, that the lift and this JK has been ridden hard and put away wet. But.... the joints are walking out. It is bound up. There is little to no flex in the front, even in a static display. The tires are too big for this lift. 37's could work, with some trimming but advertising it as ready for 37's is inviting troubles. I saw a picture of this vehicle on the trail, it is chewing through tires up front. My guess is it is stressing the joints out pretty good and the links are wearing and it is becoming harder and harder to control on the street.
The routing of the brake lines is scary. Some sort of holding the brake lines in place and away from moving parts would improve the safety of this lift. If you see in the pics the brake lines are already showing signs of wear and when compressed flop around to where they could become hooked or pinched off.
It appears that under full compression the bump stops are not stopping the compression but the shocks are.
The ESP lines have not been extended and on this extension, the lines appear to already to be tight.
And I'm not real wild about the swaybar extension in the back.
But what do I know, I'm not a suspension engineer or guru, nor do I play one on TV.