Love it!
I do not usually write reviews, but I feel compelled to write it for this AMI.
If you are not too familiar with Linux and/or are used to Windows, and if you do not want to spend hours installing the correct drivers / configuring your GPU, this IS the solution.
It is ready for use, with Anaconda already installed, at no additional charge (i.e. you spend for EC2 computing, but that's it).