^Plus, you lose however many hours when you're sleeping and all the time you don't happen to be sitting near the computer to start the next chunk. (I contemplated using the countdown timer on a watch at one point, but thought that was going a little too far) I love not having to babysit downloads.
As always, I recommend checking for updates with each use and installing any there are, as things change quickly in the digital storage business. The JD crew is usually very quick to deal with any new issues. (the Rapidshare fiasco comes to mind)