I just got a new MacBook Air a few weeks ago, to replace an aging MacBook Air. Retina display is a huge upgrade, and USB C is great (I don't miss the mag safe charger as much as I thought I would). The keyboard though ...
Week 1: For the first week the keyboard was great (although more clacky sounding than the older model).
Week 2: The R key started misfiring. Press the R key 10 times, you only get 8 Rs on screen.
Week 3: I was about to bring it in to get replaced, but then the R key started working again.
Great that Apple has acknowledged the issue, and as soon as the R key misbehaves again, I will be bringing my MacBook Air in for repair.
The misfiring, along with the clacking noise makes the overall experience of the newer keyboard feel "cheaper" than it's predecessors.