Earlier quoted context omitted.
I disagree. In fact, given the regular loss of online credentials, I think you are misguided in your faith in a hosted password solution. There are plenty of people that do not want to for very good reasons. As far as syncing using non-hosted 1Password, I use a combination of wifi sync (for mobile devices) and Resilio (in local sync only mode, no tracker, no cloud copy a la Dropbox) to sync. Works very nicely across…
Does that work well with multi device updates? What happens if two devices write to the database and then sync?
With the other apps, you'd get nice behavior with 1Password.com because the first one to hit the server will have its record saved in the archive. That's one of the nice features of 1Password.com, getting to see item history. You don't need to worry about accidentally overwriting changes.