It is a very good choice for the iPad Air 4, adding minimal volume and weight to the device. The magnets for the screen work perfectly even with a screen protector (I say this because on my old iPad Mini 2, I had an authentic Apple smart cover, and it didn't fit properly with a screen protector). The only downside is that it requires a lot of attention when removing the case, as it can easily scratch the iPad's casing, and of course, if you frequently insert and remove the iPad, the plastic will eventually break on the sides, like with any other case of this type. If you want something for this situation, look at the magnetic cover from ESR