Top critical review
Kindle edition DRM makes it almost impossible to use.
March 12, 2018
The DRM on the kindle edition rendered my copy almost useless. It can't be opened on the web reader or viewed on an actual Kindle, leaving only my android devices to run it. It can only be opened on 2 devices before locking out, so you'd better be sure you choose wisely as where to open it. This is the worst example of DRM I have ever had the displeasure of having to work around.