How useful are the different styles and the highlighting in this tutorial?

I have developed a new type of blog that allows different presentation styles and includes a source code highlighting feature. If you could find the time to take a look at a 60 second Hello World example at http://lishman.io/angular-2-hello-world, and then answer three short questions at https://goo.gl/IuLhhg, it would help me a great deal. Thanks. (see comments for links)