The tools are wonderful and include magnetically active drivers for picking up screws, plus tweezers, but it took more like ten hours to do because some of those screws are next to impossible to fit back into their holes - especially when there is a tiny protective plate that it has to go through first. My tip: use the fine point of the plastic spudger to at least hold the opposite hole centered and then just pray something will knock the screw into correct position. Then use a bare finger to rotate a first turn because the magnetism of the the (otherwise great) 3T Torx will pull the screw out before you can pin it down . Then finish with the Torx.
Before starting Tip: use the ONLINE guide with another device if you can because they have multiple pictures, sort of animated, so you can see before, during, and after. Very valuable. Printing it will lose that.
Professionals must have other sophisticated tools that can help with this unless it is all done by robotics. My fingers are still raw.
I cannot believe I did this — and my MacBook Pro 2016 15” Retina, touch bar computer is back up and working. I did not expect it to start ever again. I was certain that it would not have wireless because I was certain I had damaged one of the minute connectors on one of the three little wires for the wireless. But wireless is up. Using it now. So far I cannot find anything that is not working and I have been back up for about 40 minutes.
Am I glad I did this? YES, very. Would I recommend this? NO Never - just buy a new one.
The guide is EXCELLENT. (although I wish it had had tips for how to accomplish a few things, for instance a technique for being sure each screw gets back in the same hole. I labeled painters tape, wads of it, and that was successful. )
The difficulty is not the procedure itself, nor that there are over 65 steps. The difficulty is keeping hands and fingers steady trying to get many minutely tiny screws back in their holes.