it'll be very good. it won't resolve conflicts for you, though - just like Dropbox or Google Drive also wouldn't. It's last-write-wins, so you either need to keep your devices connected and syncing at all times, or you need to be careful when you edit the same files on different devices.
I use Syncthing for all kinds of things and it's excellent, but it's not really a silver for bullet for mutable data like text files.
I use Syncthing for all kinds of things and it's excellent, but it's not really a silver for bullet for mutable data like text files.