I have the 3.5" coil lift and shocks (can't remember which were the better shocks but I have the more expensive ones) and its a great lift so far. Haven't really been off road but it's smooth on road. No noise from the lift, not flimsy, all around I'm happy. I know there are better options out there but I chose this lift to upgrade to mid or long arm down the road. I think you'll be happy. Got exactly 3.5" of lift and didn't really compress much with full size spare, replacement front and rear bumpers, and a winch.
2012 JKU, 3.5" Rubicon Express lift, 35" Nitto Trail Grapplers, Pro Comp 17's, Smittybilt SRC rock rails, XRC front bumper with XRC8000 winch, Wurx rear bumper, and other stuff that's cool!!!