The autoreplace or autocorrect feature feels a bit too aggressive.
For example, when I want to type “wouldn’t”; it corrects at the place of the apostrophe so I can’t get the full word in. It happens with a number of other spellings, too, some that may be a matter of preference.
I don’t know if it’s possible, but it would be nice to either correct some of these, or at least have autocomplete turn off if the user goes back and edits the word themselves.