I've been using it for quite some time now (6 months+). I moved from 1Password to Proton suite. Proton Pass works just fine. it lacks the many options I've had in 1Pass, but honestly, barely used more than 2-3 categories.

So far, I've found only 2 websites that create a bit of an issue, by not allowing the login credentials to auto-populate.

Using the Unlimited (paid) version, totally worth it

Absolutely key in my day to day life, and very quick response when I was unsure how to use a feature. Couldn't recommend it (along with other Proton services such as Mail and Drive) more.

Works like a charm!

Works flawlessly. It is feature rich and easily comparable to all other password managers.

EDIT: Monospace font for password field feature was recently added. I changed my review to 5 star as the only grip I had was solved. Below statement is no longer correct. I am gonna leave it though for developer response to make sense.
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But it is lacking support for displaying passwords in monospace font, thus the 4⭐ rather than 5

It could still use some auto-fill improvements but it gets the basics right and I trust the folks at Proton to get the important stuff correct.

Proton is the safety pro. Until proven otherwise, unbreakable. And this advice applies to all their services

Trusted. App and Extension.

The ease of any password manager, combined with Proton's privacy guarantees, make this a trustworthy and reliable tool.

Une merveille, merci d'exister !