I've had experience with Lastpass, 1Password, Keepass/KeepassXC, and Roboform, but Bitwarden is the best password manager I've ever used.

It's free and open source, which are very good qualities for software to have. It's very trustworthy because it's open source and it goes through security audits that happen every year. Those audits are shared with the public. It does a good job at autofilling credit card info and logins in web browsers and on Android. It's good at offering to save new usernames and passwords.

However, it has some noteworthy problems that I've listed below.

1. The UI of the browser extension and mobile app is not as organized and beautiful as it could be. It looks too cluttered in some places. The UI animations are just a little too slow sometimes when clicking certain things in the mobile app and browser extension, like when opening the folder menu or sync menu, and other menus.

2. There is no passkey support. You can't use a passkey to sign in to Bitwarden, and you can't create or save passkeys with Bitwarden (support for passkeys is coming soon, though).

3. Bitwarden does not have autofill popups near text fields like 1Password does. You have to click on the suggested item in the Bitwarden extension, or use a keyboard shortcut, if you want to autofill in a safe way.

4. Bitwarden does not feel as user-friendly as 1Password or KeepassXC, and a lot of that has to do with the UI of the browser extension and mobile app, I think. There's too many buttons and options visible at the same time in some menus.

5. The Bitwarden desktop app can't autofill/autotype the text fields of desktop apps on Windows.

6. The keyboard shortcuts are not configurable. I want to be able to change the "copy username" and "copy password" keyboard shortcuts.

7. Pressing Ctrl + W to close the Bitwarden desktop app window removes the tray icon on Windows, even though I enabled the "Close to tray icon" setting.

8. I can't sort my items. They're all sorted in alphabetical order. I want to be able to sort them by "date modified", "date created", and "recently used/last used".