Flexible and easy to use settings class

I am thinking about a way to create a flexible "settings class" in C#. The question is: How to provide a confortable way to provide default values to the settings. I want the programmer to access the default settings as easy as possible using intellisense. Therefore I encapsulated the default values in a subclass of the actual settings class (instead of defining them directly in the settings class).

 public class ServerSettings
 {
    public ServerSettings(int port = ServerSettings.Default.Port,
                          string anotherSetting = ServerSettings.Default.AnotherSetting)
    {
        this.Port = port;
        this.AnotherSetting = anotherSetting;
    }

    public int Port { get; set; }
    public string AnotherSetting { get; set; }

    public class Default
    {
        public const int Port = 7000;
        public const string AnotherSetting = "abcd";
    }
}

The programmer now is able to access the default values like this:

ServerSettings.Default.Port

And after typing ServerSettings.Default a list with all available default settings will show up. It's like a "multitype enum".

What do you think of this solution? Do you have any alternative ideas? Or some criticism?