I was so skeptical at first, and even now it seems most people still are. It's a complete game changer though. There's almost nothing I can't do on my phone anymore, due to the multitasking and the larger screen. I can comfortably use desktop websites when necessary for banking etc. I have watched many dozens of movies and tv shows on it. It's just nicer for reading and browsing the web, and makes your phone feel so much more powerful to have the tablet form factor. I've actually been travelling for over a month with no laptop, just my Fold and a Steam deck.
I'm also appreciating having what is essentially a 5G-connected tablet where in the past I've always dismissed the LTE-connected ipads as a gimmick. It's hard to justify paying extra for the device and then a monthly fee, but now that I have it I can definitely see the appeal of a tablet that just works anywhere you go. Except since it folds you can put it in your pocket too.
I've dropped my Samsung Flip (the og) on solid tile so many times, and my screen and phone are perfectly fine. My partner had his drop on cement, and while it has a slight bend, no screen break or anything else. I've actually found them to be durable than the other normal phones I've had.
I'm on iOS. In 6-7 years I will have the chance to buy the iPhone 20 Pro Mega Butterfly - one of the first folding screens in a phone [with: insert apple technicality] at barely a 40% markup over the Android versions and with some fatal flaw that will be my fault for noticing. I'm just giddy with anticipation.