Eh, I dunno. My son got a Flip 3 last year and likes it. Admittedly, the built-in screen protector started to delaminate a bit along the crease in July, so we took it in for replacement, but the screen itself wasn't damaged any, he hasn't had any issues with the hinge, and he says he likes the phone.It's 100% a fad, and is already dying off. Anyone I know who got one in the past few years entirely regrets it, because even if the screen itself doesn't just fail outright from the folding, it still scratches super easy and looks like shit after real world usage. Sure - You can put film protection on, but the film protection is just garbage as well since it's not a glass type of protector.
I just don't get the point of having the huge fold out display when it quickly looks like shit, and even out of the box has a nasty line in the middle no matter what you do. At that point - Who cares that you have a bigger screen? Christ, could you imagine the 'gate' shitstorm if Apple used this current fold technology and released an iPhone with it?