1. The autocorrect is the worst part and the only real struggle as it often change the word not logically with the previous words (softkey) or it doesn't know the correct conjugation and changes it. Finally, the menu shortcut is way too close to the letter 'a' and I can't stop hitting it.
2. On the ergonomy side, only 'select text' is problematic for me, but not the long press + cursors, that's okay, it's more about cursors themselves when they reach the edges of the screen when I select whole paragraphs. I often find that I can't select the first letters. Therefore, I always need to select some letters from the paragraph above and remove, or select less and rewrite.. Another problem with it is selecting very big chunks of text, I would love a click somewhere + 'shift' click elsewhere to select all the text. Finally, the 'Semantic' web doesn't help sometimes when I can't select several paragraphs because they are not in the same Semantic unit.
I the past I was carrying with me a small Bluetooth keyboard that could switch with a button between my phone and my tablet, but finally, writing on the phone was good enough.
I have way less good experiences with writing code on the phone or interacting with a ssh session.