First thank you for add possibility to manage your torrent client from web interface or transdroid, i have written small review of your program + how to configure trasndroid and web interface here: http://www.doomedraven.com/2014/03/how-to-android-pc-and-remote-torrent.html
As you can understand the web interface / transdroid authentication can be great feature to expose web interface to internet and can manage it from any place, but we want a bit of privacy :)
Best regards