SecureString for storing in memory and presenting passwords? Or something else?

I have been writing a little program for myself using C# that I can use to store my passwords and then retrieve them for viewing/editing.

While the passwords are stored to disk in an encrypted format, when they are read into memory for display/editing on a form, they are unencrypted.

I have learned that having unencrypted passwords in memory is a pretty big security problem, so I came across the SecureString class.

Would there be a more secure way to do this than using the SecureString class, or does SecureString live up to its name?