1 - 2 horas
My boys were running through a room which had MacBook in it in the opened state. The screen was damaged, blind blue spots were slowly spreading. This can be a great excuse to upgrade to Air or Pro, but we rejected this approach. "You broke your toy - here's a better one" - we do not treat kids like this. It's a father-only privilege in our family. So boys were subjected to a couple of months of playing, emailing and doing homework on the damaged screen. Please do not tell this to Child Protective Services.
Pretty good. The manual is excellent.
Took about 4 hours for both directions.
1. You need a girl to perform this: screws are tiny, in hard-to-get-to places. Girl's fingers and patience are a great bonus. I've used both my wife and daughter.
2. You really, really need good convinient screwdrivers. We started the attack with a kitchen knife. Luckily we realized the failure immediately, before OSH store closed.
3. Look at the picture. See a lot of coffee and tea cups? It's not a remnants of a supper. It's the essential part of success. Step #17, you take a new cup, place all screws extracted there and a piece of paper with #17. Saved us from the catastrophe I think.
4. It was a very nice way to spend an evening with two bright and pretty girls.
(Sorry, can't figure out how to "drop images here" works)