I've seen a lot of RK lifts in action and they do perform very well. Jeepn is right they did have some issues when they first introduced their Gen I stuff, but Jeremy has been very diligent in turning the company around since he has taken it over. The arms they use are solid stock and darn near indestructable. The new X-Factor kits are well designed and are also very functional. The on road manners are not changed at all. I installed a 5.5 LA on a friends jeep a couple months back and the install was pretty straight forward. However I would caution if you are buying this kit to wheel it good and hard like it's designed then get the weld on cradle and not just the bolt in.