What do you like best?
Persona completely eliminates site-specific passwords, freeing users and websites from the burden of creating, managing, and securely storing passwords.
Persona is easy to use. With just two clicks a Persona user can sign into a new site supporting Persona bypassing the friction associated with account creation.
Developers get a verified email address for all of their users, and users can use any email address with Persona
What do you dislike?
A big vulnerability is the web browser itself. Of course, if someone’s browser is infected with malware, they already have some serious issues. But what makes Persona especially vulnerable is that such malware could do more than intercept passwords–it could authenticate it to any web site you use with Persona without any intervention on your part as long as your are logged in to Persona.
Recommendations to others considering the product
Persona is still in its nascent stage and Persona is built on a concept that inherently protects your privacy puts you in control of your identity.
What business problems are you solving with the product? What benefits have you realized?
the site you visit doesn’t need to communicate with persona.org directly, meaning that persona.org never knows what sites you are logging in to. Another big advantage is that it is solely based on your email address, which is much easier to remember than an OpenID URL, and which means that you can easily remain as anonymous as your email address allows. Even better, Persona is distributed so if you own your domain you can be your own identity provider.