Currently working my way through the course (great stuff so far). I've reached a point where part of the homework was to ask a question. I don't really have a question, however I'd like to share an alternative environment that I've been using.
The AWS environment works pretty well, and I was happy with it. However I have moved to Paperspace (https://www.paperspace.com), they have specific instances built for machine learning.
Their instances are faster (better GPU) than the AWS instance referred to in the course (about 50% faster) and cheaper $0.65/hr vs $0.90.
The ML-in-a-box has everything you need pre-installed to do this course.
I had to fix three things
1) Jupyter notebook was not bound to the public network adapter (so I could access it from my browser)
2) The notebook port needed adding to the firewall.
3) Downgrade the version of Keras to 1.2.2 (seems to be some sort of bug in v2)
One final cool feature is the 'Auto off after X hours'. This saves you from being charged if you accidentally forget to turn it off.