Thank you! Make sure to install http://www.oracle.com/technetwork/java/javase/downloads/jce8... to allow 160-bit cryptography and use -e flag to be completely safe!
I also have a simple shell script locally, that wraps the java command, so I have to just type `btmagnet AF0D9AA01A9AE123A73802CFA58CCAF355EB19F8` to download to a pre-determined location (hardcoded in the script). I wonder if I should share it on the CLI README page