I don't think password manager's could be trusted enough to generate a password for use, mostly when it has to be used for some thing very important or financial stuff.
Most of the people around tend to use same password on most of there user accounts online and they carry a risk of loosing all they have at a single cracking incidence so I would just advice not doing so, but its seems to be in human nature.
I think a manual randomly generated password could act in a more secure way than a generator.