My airport has been weak for years. But I hesitated to spend the money at the GeniusBar.
Perfect. Easy. I followed the photos and moved carefully and it went perfectly without a hitch.
I used a plastic multi-compartment container for the different types of screws. The Spudger was essential. I used a magnifying glass to see the airport card antennae connectors carefully to be sure they were re-attached firmly after installing the new card.