I just installed a MC GCL(of sorts), but it is really too soon for me to comment on much. But here is what I can say so far...
During install:
*The directions state that the arms would be "preset" from them, but they weren't. (Not that big-a-deal but still annoying)
*Several of the clips that hold the bushing in the arms were not properly set and needed to be fixed. There is no excuse for this. To me it's a sign of quick and possibly shotty work.
Post install: (all road)
*The ride is more firm than my stock Rubi coils/shocks. This could be due to the Bilstein 5160 shocks I paired it with (I won them). To be honest, I don't really like it and hope it will change once the shocks wear in a bit.
*Handling seemed fine in the corners and if anything better, but the Jeep gets upset easier on dips or bumps in the road.
Other thoughts:
*I absolutely hate the looks of the Eifel tower of a rear track-bar bracket they have. It raises the bar 6" and while I haven't flex tested yet to check bump-stops, I'm pretty sure it is going to limit up-travel. I already have an EVO bracket to replace the monstrosity but didn't install it as it was too cold to paint and I want to weld it and add the EVO Rock Star Skids, which by the way can't be used with the MC track-bar bracket. (without modification anyway)
*Abstractly the quality seemed good on the arms and coils. But to my OCD eyes there are issues. For Example, the amount of thread showing on the front LCAs is off by 1/4" when they are set to the same length. (What the hell)
*Like RK, MC lengthens the rear by an inch. In general, I am not a fan of this. It causes a bunch more spring bow than necessary. My intentions are to set the rear back in a 1/2", cut and reweld the perches to correct this, but this too will require Winter to give up which seems unlikely :naw:
Now, I have been pretty critical, and as I mentioned I have OCD. I can be just as critical on just about every part I've put on the Jeep and every other one of my projects and this includes the stuff I made... But as I've said before I'm an open book. If I were to go at this again I would likely still use the MC arms as I like the joints for dealing with the salty winter roads, I don't know what I would do for the springs :idontknow:, I'm not happy with the shocks (Bilstein), and I would not use the MC track-bars and/or brackets.
Having said all this, the OP asked for pics, so here you go...