It generally works, hence the 4 stars I gave it on the iOS App Store. However, I believe there are some improvements that need to be made:
Allow users to manually save. Sometimes it gets annoying having to wait around for it to autosave.
Allow users to turn off auto-capitalization. I am a conlanger, and the auto-capitalization gets annoying whenever I do conlang documentation stuff. If I type something in all lowercase, it’s because I want it to be in all lowercase. If I wanted to capitalize it, I would have.