Long time Espanso user (1+ year). It is one of those things I will lose my mind because my muscle memory is tuned to its shortcuts.
I often type the same shortcuts in my Android device out of habit. So you can tell that I'm waiting for an Android version! I'm working around it by adding words to custom dictionary in Google Keyboard. But I'd love to be able to use the same .yaml file for my phone. I'm not necessarily talking about sync as I don't change the file often.
One more thing about is the GUI search bar they have added. It has rough edges (doesn't react to my shortcut, etc.) but I'm sure it will get better.
Love Espanso! Thanks and all the best to Federico, the creator and maintainer.