This is still a great introduction to Construct 3 and worth whatever price you pay. RIght now Udemy doesn't have any other Construct 3 classes. (There is one that claims to be Construct 2/3 but it only has 20 minutes on Construct 3.)
So get this course and see why Construct 3 is the best ever game engine.
I've been converting some Construct 2 games to Construct 3 and so far there's not too much differences except that the UI is tons better. In fact, the major difference I've noticed is that Construct 3 now supports Booleans.
This class has 117 hours of lectures and runs for more than 8 hours. It has a rating of 4.4 out of 5 which is great! He covers a lot of cool features as well as walking you through a Flappy Bird game, a detailed platformer, and a match-3 game. How cool is that?
If you are poor, check out the frequent sales on Udemy (right now this course is $10), but if you're not poor, pay the full price because this course is worth every penny!