The Elgato Key Light Air's minimalistic design, easy setup, and simple, yet effective features are what make it an extremely worthwhile product for streamers.
There isn't that much that isn't great about Elgato's Key Light Air. But, if I was to cherry-pick some aspects of it, I'd say the following. A longer power cord for streamers who have standing desks and have their power boards on the floor and a slightly less tighter groove so when height adjustment is happening, users don't have to take the cord out of the groove.
So, let's wrap this up. Is the Elgato Key Light Air worth it? Well, it depends on how much money you are willing to spend and how dedicated you are to streaming. If you are a streamer who is thinking about streaming for a while and taking things a bit more seriously, then yes, the Key Light Air is definitely worth it.
After the simple set up of the Key Light Air streamers will quickly realize that their lighting problems have been solved, which is exactly what Elgato set out to do with the Key Light Air. On top of that, if you are a streamer that also owns an Elgato Stream Deck, then you will get a much better experience out of the Key Light Air as all of its features will simply be within an arms reach.
But, if you are just a casual streamer looking to get a bit better lighting for your set up, and don't really want to be spending a large amount of money, then I wouldn't recommend the Key Light Air. I would recommend just some cheap and simple standing lights. They will still make a world of difference on camera.
Overall, if Elgato's mission was to solve the lighting problem that streamers have, while also throwing in some additional usability features, then they have definitely completed the mission with flying colors. The Key Light Air only has few downsides, but those downsides are outweighed tenfold by its positives. Fantastic work Elgato, I cannot wait to see the next-generation of the Key Light.
The Bottom Line
The Elgato Key Light Air is the lighting solution streamers want, but didn't know they needed. Accompanied with more features than expected, streamers won't be disappointed if they chose to purchase one or many.