Proton products are good but the lack of tech support and the fact a lot of their wording is rather vague on what they offer in their paid packages keep me from supporting them wholeheartedly.

Requires a constant internet connection.

Takes some janking around to get it working on Linux. The plugin often has to be accessed from the top menu of the browser for it to activate and work. Lots of work-arounds required to make it function, but it does work.

Autofills passwords, lacking in authentication options, the ability to use the extra password already associated with my account, as opposed to a pin or nothing, before each autofill, would increase my rating greatly

It's okay. It does the job, but it's got a long way to go before it can replace the likes of Bitwarden.

Good.
Integrated email alias feature is very good, this why I switched from 1Password to Proton, but some features are missing (autocomplete credit cards, saving a key (and not a only a login/password), ...)

Proton Pass has an attractive front end, but few technical advantages over e.g. Firefox password manager. Most of its fancy features don't work properly. It has many false positives for "re-used passwords" and "weak passwords" making its advice meaningless. I'm hoping it develops more actual function and not just surface buzzword stuff.

Oh, and it's only "free" for basic use. They will *totally* pressure you to buy more services.

Since the october 31, 2024 update, it is impossible to avoid suggestions when going to a web page with authentication, in firefox on macos. The popup showing the users is still popping. It was working in the previous version.

This is my preferred password manager and MFA tool but it still needs a lot of work. In particular the process of creating a new account needs fixing so that new accounts and logins created are automatically saved, rather than having to manually create a login and then manually feed the details into the website. Currently Proton Pass suggests a login and password to autofill but does not actually save these automatically if you select them. This means that you immediately have to change you password again.

Added to Firefox, instantly the browser starts experiencing lock ups which I have to force quit out of. Disappointing.
EDIT: Seems there was a conflict. I had the LastPass extension installed, and as part of testing out the Proton Pass product, to see if I could switch, I had left LastPass installed. Once I disabled the LastPass extension in Firefox, the Proton Pass extension worked correctly.

Unreliable, Lastpass much better

I love the Proton suite of products, but this app/extension just doesn't reliably respond to a login! The FFox & Edge browser PW managers do consistently, but unfort. not Proton. Would love if they fixed this!

The addon is very basic and needs work.
At least bio-metrics login should be implemented.

usability could be better (missing shortcuts). Buggy, sometimes the correct credentials do not appear.

Very good but miss 1 very important feature: work offline ;)