The subscription plan is very poorly thought out, I have the "mail plus" subscription and if I want unlimited proton pass I have to take "proton unlimited" which is a price difference that makes no sense.
The free version is much too restricted.
There are also a lot of bugs: the fields are filled in but the validate/connect button does not activate, or refuses to connect.
It also lacks many functions, the "check up" of weak passwords for example does not exist, the sorting functions are more than limited, all this is too basic.
In short, it's too expensive and it's too limited.
I wanted to switch from Firefox manager to proton pass and finally I backtracked.
I love proton mail but there is still a lot of work to be done to make proton pass a premier password manager.