So 90% of the work here is feeding the ribbon cables through the hinge. Other than that it took me an less than hour to disassemble and assemble again. Those cables took me about 2 hours to get rolled correctly to be able to feed them though and an hour to get them out without causing any damage. A speaker wire did break from the solder when it jumped on to the screen but that was a quick 5 minute repair. I would say overall not a hard repair, You just have to take it slow cause of all the fragile ribbon cables… As for engineering recommendation make the robin cables detachable from both ends Nintendo.