Getting an account opened is hard. I had to open a new checking account with a new bank to get the Form 5444 Signature Guarantee signed since three of my existing banks refused to sign it.
The website is bizarre. Crazy colors, fonts, at least one bad link, and technical language throughout. The login process uses a on-screen virtual keyboard you click with a mouse. You can't store this password in your web browser or type in your password with your normal keyboard. You cannot even view the password before submitting it, so be super careful clicking the on-screen letters with your mouse. The site also uses a single contact method (email) for two factor authentication even when you know your password, so never lose access to the email you used for setting up your account.
The site will ask you repeatedly for your identity challenge questions even if you enter the right password. It is very important that you record the answers you gave to your challenge questions. If you get this wrong, they will lock your account and you have no way to get to your investments besides calling them. Current wait times are over 2 hours for phone assistance.