It's always the second or third time you do something that it really bites you in the... behind. I spilled coffee on my keyboard for the third time in the five years I have owned my laptop and, after drying everything out as best I could, several keys no long functioned.
This wasn't the first repair I've done using iFixit parts and guides so I knew going in it would be a snap. The guide was very useful, as usual.
The ribbon cable for the keyboard itself was the only tricky part and it took some work to get it seated properly.