A year ago, we called the M3 version of the MacBook Air "just about as good as laptops get."
The "as good as laptops get" part was about the qualitative experience of using the laptop, which was (and is) good-enough-to-great at just about everything a general-purpose laptop needs to be able to do. The "just about" part was mainly about the cost because to be happy with it long-term, it was a good idea for just about everybody to spend an extra $200 upgrading it from 8GB to 16GB of RAM. Apple also kept the M2 version of the Air in the lineup to hit its $999 entry-level price point; the M3 cost $100 extra.
Apple fixed the RAM problem last fall when it increased the minimum amount of RAM across the entire Mac lineup from 8GB to 16GB without increasing prices. Though Apple probably did it to help enable additional Apple Intelligence features down the line, nearly anything you do with your Mac will eventually benefit from extra memory, whether you're trying to use Photoshop or Logic Pro or even if you're just opening more than a couple of dozen browser tabs at once.
The new M4 Air also starts with 16GB of RAM. And Apple is launching it at $999 ($1,199 for the 15-inch), ditching the M2 and M3 versions of the Air. It's hard not to be impressed with a laptop that addresses our two biggest substantive complaints about the previous version.
The laptop is still expensive, insofar as it is still a $1,000 laptop. But Apple is selling a laptop for $999 that would have cost you $1,399 a year ago. In a time of constantly rising prices, that's a pretty rare thing.
The MacBook Air, again

This is the third iteration of the MacBook Air's M2-era refresh. Apple originally introduced the design in the middle of 2022, and it was joined by a similar 15-inch iteration in the summer of 2023. For owners of Intel or M1 Airs or any other laptop, here's a brief recap: Apple got rid of the Air's tapered design for this one, in favor of a laptop that's still thin but has a uniform thickness throughout (0.44 inches for the 13-inch Air, 0.45 inches for the 15-inch model).