It is very easy to learn and you will find a team of developers will quickly get up to speed. It is extremely popular and backed by Google so there are plenty of blogs, solutions and discussions out there.
Angular reduces time building an application compared to other mvc frameworks and thus saves money.
Two way binding is one of the most important features Angular provides. It enables real time updating of a model as soon as the variable binded to the scope is changed.
Accessibility and locality is also supported. The ngAria module automatically makes most of your site accessible.
Currency, Dates and Number data types are localized out of the box. For the String data type, you will have to manage locals yourself. There are several 3rd party libraries out there that can help you with this.
Testing is what angular is all about. There are several frameworks created by the team at Google that allows you cover all aspects of testing. ngMock is used for unit testing, Protractor is used for end to end testing and Karma is an automation test tool.