Let's see.. Reading is absolutely top tier with KOReader + volume buttons as page turning. Being able to play idle games like Kittens Game, also extremely pleasant. Maps outside? Amazing. As a phone, in Europe at least? Also works. Battery life, is pretty comfy, when I mainly read. And, the specs are decent. 4/6/8GB, 128GB/256GB ROM RAM options (personally I had gone with 6/128 option, because 8/256 was a bit too expensive)
The only minor flaws... well, the camera is not the greatest... (My old OnePlus 6 makes much better photos, as I keep it as backup device, just in case. And for e.g youtube or color content on the go. Just... things that A9 is not exactly the way to go with.) And just lack of microSD card slot.
And on side note, I just adore how simple, and elegant the design on the phone itself is. It just... is. Quiet, simple, unlike most of the modern phones with their.. loud... everything, like notches, too many cameras and such. (Note, its just opinion, just because they have such designs, that doesn't meant they are bad. For others that can be a gooood thing.) (I also like Sony's phones designs, they cute)
And in general.. I just love e-ink. Truly blessed technology, as a user.