I'll throw my two cents in.
I run the mopar stage 3 lift on my 14 JK. It was already installed on the jeep when I purchased it.
The good.
Drives beautifully on the road, as long as you like a firm ride. It won't rattle your fillings out, but the body roll is minimal (for a lifted jk) the steering is responsive, and overall the ride is very comfortable. (as long as you're not expecting cadillac plushness.) Off road, It has not disappointed. Handles washed out green trails at a decent speed very well. Doesn't try to buck all over the place. Flexes well on rocks. So far it's done everything I've asked it to without complaint or breakage. The limit straps and exhaust spacers seem to keep the front DS from contacting the crossover pipe, after 7k miles and two off road trips to Rausch Creek, I haven't started slinging grease yet. (But I am aware that at some point the drive shafts both front and rear since I have a two door will need upgrading.)
Love the fox shocks, but the speed bumps are useless for the type of wheeling that I do.
For what it's worth, All of the wheeling done on this jeep was on the east coast. i'm a newbie rock crawler doing trails that I probably shouldn't be on just yet, but there's only one way to learn. Again, everyone's idea of "wheeling hard" varies.
The bad.
1. It's overpriced. Big time. Unless you get a deal, there's many other lifts out there that give you more bang for the buck.
2. No front track bar, no quick disconnects. I seriously had a wtf moment when I looked at the front endlinks and saw that they weren't a quick disco setup.
The variables.
If you have a very cool dealership, they will not give you shit about big tires and a lift if they install this lift. Mileage here can vary widely, but I've had my jeep in for a tranny problem, and vibration issues, and my service manager always covered my work, and told me that as long as the modifications I've done to the jeep don't cause the problem directly, then i'll be covered. (He's familiar with the magnusson moss act.)
All said and done. I wouldn't buy this lift again. It's not a bad lift, don't get me wrong, but I personally didn't know exactly what I wanted when I bought the jeep.
Over time I'll upgrade the control arms to evo and Springs to evo plus rides (not decided on 3 or 4") along with a mess of other parts. No big problems but it sucks to pay for something and know that eventually you're going to replace it. I've already added jks quick disconnects, and I have a drag link flip kit going on this week. When it's all said and done... The shocks and speed bumps will be all that's left really. Massive waste of money for me.
Like another poster mentioned... learning is part of the fun amirite?