When it works, it works. When it does not work do not expect a quick resolution. Or an easy resolution. Or any significant help from the forums or help desk.
But when it works, it does a fine job. When it works.
Just dont encrypt your external hard drive, then ask why it wont access any of the information you were able to hundreds of times before. You can wait patiently for an answer. I waited for more than a week. I am still waiting.
So conclusion:
When it works, it is just fine! Be sure that the important information you are encrypting is not something you really want to access readily. It may be weeks (if ever) you get that information back in working order again.