1) Slow, confusing and rarely updated (any any updates are just as likely to be a regression as an improvement in my subjective opinion) UI. The browser extension is terrible and up to last year, their hacky password-field-finding javascript slowed down several pages to to point it was unusable. It's still not great.

2) The business model of LastPass worries me. Unlike a 1Password (I tried it for a 3 month trial, don't use them or have any skin in the game for them) charges a lot more than LastPass and in addition to having a more smooth, speedy and performant application, they are charging enough money to feasibly be profitable just storing passwords.

LastPass has has more data breaches than the others (google). It's run by a domain register. In my opinion this influences how the password business is run, leading to a marketing-forward rent extraction password manager vs a good one.

- It frequently stops working and needs to have the chrome extension re installed (at least on Linux).

- It’s sluggish.

- The password sharing experience sucks.

- The drop down menus often get obfuscated in weird ways.

Chrome extension was broken for several days, that was painful, pulling out my phone for long passphrases on various sites.

While I wish the bitwarden UI could stay over the top a little better, been really appreciating it vs lastpass... it's a bit simpler and less confusing overall. Not quite the same feature set, but that's okay..

I do wish the autofill wasn't two menus deep though. (right-click, bitwarden -> autofill -> list) wish it just expanded autofill (if less than say 5 matches) on the right-click menu.

That last one, the drop down menu getting some auto full garbage which obscures choices and interferes with selection is annoying.