I signed up for my Air by crazybaby earphones fairly late in the Indiegogo campaign - November 2016.
The design and specs looked good, the price seemed fair, and the estimated delivery date of January 2017 wasn't far off.
When the earphones eventually arrived in August 2017, I was on a long overseas holiday, and I didn't get to test them until October.
My experience is pretty much exactly the same as all of the other reviews posted here. While the sound quality delivered by Air is OK, that's really only useful when the earbuds are actually delivering sound. Which, most of the time, they're not.
Bluetooth connectivity on the Air earbuds is woeful. Even with my phone in my coat pocket (less than 30cm from my ears), dropouts are constant.
I bought the Air earbuds to replace my Plantronics BackBeat GO 2 earphones, which I hate. As things have turned out, I'm using the Plantronics earphones every day once again, because they are streets ahead of the Air.
The design of the Air is great - but I didn't buy the earbuds for ornamental purposes. I can't recommend them in any circumstances. They're going in the bin.
Bottom Line: No, I would not recommend this to a friend