First, typing was actually slower and more error prone. Even nearly a year into owning it, I was constantly misclicking and spending loads of time correcting myself.
Second, you loose a ton of navigate functionality with the hardware keyboards. Holding space to navigate between characters is gone. Emojis are gone. GIF keyboards are gone.
Third, none of the apps are built for this aspect ratio or screen size. Often this is just an annoyance - but there are times this became an actual, legitimate blocker. Items would be laid out off screen in a way that you couldn’t access them. The solution: a scaled view where everything was ridiculously tiny.
Three B: too many situations where the virtual keyboard would come up and you’d literally have the entire screen covered.
I didn’t realize how much value I lose with these issues until I experienced them. Every thing you’ve relied on essentially become unreliable because you might not be able to use certain functionality.