When it comes to what exactly, "...separates The Men from the boys," in electronics repair - specifically as it relates to our portable gadgets, the ability to solder components the size of a grain of salt, under a 50x microscope is a great litmus test!
Equipping a shop and training a technician for just such precision work is why most shops don't bother. At Gadget Garage it's increasingly expanding our customer base to offer such services. We take the work seriously and continuously train, so we're always on top of our game.
No, it's not cheap usually but considering the alternative, it could save you 100's of dollars!