It works really well across all of my devices and operating systems (and will continue to do so as those systems change).

I’m glad keepass exists, but I’m happy to support polished software in this domain. I like paying for software I think is really good and focuses on a narrow problem.

+1 for keypass. The apps aren't quite as polished, but they do what I need, and I can store my encrypted password file in my Dropbox folder so that I've still got it if any single company in this small chain folds.

1Password its vault format is open source, so even if the company goes belly up a 3rd party tool that can decrypt your vault can easily be written.