How powerful is "ASP.NET Web Pages - Web Matrix" introduced in .NET 4.5?

How powerful is "ASP.NET Web Pages - Web Matrix" introduced in .NET 4.5?

I want to know how powerful is "ASP.NET Web Pages - Web Matrix" introduced
in .NET 4.5 comparing MVC 4? Is it suitable for develop a large scale web
application and would it prefer to other web development technologies? if
not, what is the purpose Microsoft introduce it?