Posted my full thoughts here:
http://andystravelblog.boardingarea.com/2018/02/05/dji-mavic-air-review/Generally though (to save you the click) I think it flies incredibly well for the size, battery life isn't great (but is good for how small they are), and the panorama mode makes up for smaller megapixel size.
The intelligent flight modes are awesome and I'll use them more and more as I get into drone video, DJI has built some incredibly smart tech into these things.
The only reason I wouldn't wholeheartedly recommend one is I have a feeling DJI will put the 20MP 1" sensor with mechanical shutter into the Mavic Pro body sometime soon, but that's conjecture. For now I think the Mavic Air is very worth the money and the portability is just divine.