I’m a big fan of the Angular CLI, it made my life as an Angular developer a lot easier. It still has some rough edges but Angular was made to use with this kind of tooling.
One of the pieces that is still missing is good documentation. There is some guidance in the Angular documentation and some info on the GitHub website but I found the information to be incomplete(at the moment of writing) and had to fallback to StackOverflow for finding a lot of information.
Last week a colleague heard my complaints about the documentation and sent me a link to The Ultimate Angular CLI Reference Guide. Great tip!