I started the Deep Learning course at Coursera by Prof. Andrew Ng. In June 2016 I did his course on Machine Learning, a very interesting one also. My only remark I had at that time was the language Octave used for the exercises, I wished it had been done in R or Python.
And guess what? The deeplearning exercises are in Python!
Here are the posts on my progression..
UPDATE 30 Sept 2017: I just finised part 1 of 5, more info here.
UPDATE 1 Dec 2017: I just finised part 4 of 5, more info here. One more to go !
UPDATE 15 FEB 2018: I just finished the complete course, more info here.