Very good, but not without major faults.

Context: I use their paid premium tier.

Proton pass is a godsend, email aliases etc. However, it is buggy and inconsistant. The "suggested strong password" or whatever NEVER saves, so you wont ever see that password again. I have to manually add a login and generate a password from there.

Reliability is a major +, daily heavy user, and no downtime that I recally that was messing with my plans.

I'm uncertain of the value proposition here, I use proton's entire ecosystem so for me def worth it for me!