I did a udacity class a few years ago, and it was good content. But with Coursea and EdX in the same space they seemed pretty comparable to the classes I took

I did a udacity class a few years ago, and it was good content. But with Coursea and EdX in the same space they seemed pretty comparable to the classes I took at those places. I like Udemy but the content is definitely not quite on the same level. For me it was mostly about getting over the initial learning curve of getting used to something new (interfaces, set-up). As an intro many of the classes are definitely worth the $10-15.