Like the Proton brand focused on customer privacy so have high hopes for this. A great start but some key functions not there...for example, many sites have more than two inputs to log in. Proton Pass only will recognize 2 so a lot of "cutting and pasting". Also some password managers will enable configuration of specific inputs to specific fields (in case the password manager can't figure out which field matches with what data is in the manager).
But the more one uses protonpass, the better it seems to work. Hopefully they will fix the limitations with quick updates.