Having been a very happy owner of a 2013 Nexus 7 until I lost it about a week ago at a cafe, the appeal is basically having "one" device that does everything I need (sans a laptop, obviously). I used my phone for all communication and my tablet for e-reading, because the larger screen and form factor was welcome. But having that tablet meant one more device I had to lug around and keep track of, and as I can attest, that made it easier to lose or forget somewhere. If the phone folds out into "tablet" mode, it means I've got it with me at all times.

For me, the biggest barrier right now is price. Having it all in one device is convenient, but for me it would easily be cheaper to just have a year-old phone and a year-or-two old tablet. Hell, given that I paid $400 for my Galaxy S8+, $200 or so for my Nexus 7 (like five years ago), and about $800 for my laptop, I could have all three for less than the cost of this thing.