I spilled soup on my wife's macbook and then it all went haywire.
Ifixit was great! I purchased the top unit $149 and also the recommended tools. This way I could start and knock it out as soon as package arrived. Very straight forward direction. I used the video and the on-screen guide at the same time. took me about 3hrs.
The little connectors on the motherboard are very fragile as indicated many times in directions. I broke the tiny one that is used for the front glowing LED. The on screen directions show using the flat end of the spudger to pry, but in the video she used the round end. I thought "Great now I need to buy and wait for the board." Once if figured out it was for the light I was actually glad. I do not like the pulsing glow in a dark room. Anyway, take your time and be gentle.