This is all I need. Worry-free!

A great free version that works on multiple platforms such PC, Phone, iPad all together, for free! The username generator is also a very cool feature!

A MUST HAVE. The Firefox add-on works on the desktop. Still trying to integrate with mobile.

An amazing password manager. It might take some time to acclimatize and pursue some password hygiene, but once done Bitwarden works perfectly. The free product is wonderful with 95% functionality as the paid, which has a few more nice features at a reasonable cost itself. 10/10

In terms of user experience I think it is 5, but I am still missing ability of adding two accounts as it is in mobile and os clients, thus I give 4.
Edit (2024-01-18): After 1,5 year, ability to have multiple accounts was added, so I have changed to 5.

I've been using this addon for several years, and it's great.