RIGHTAFTERTHIS  Wow, nice li' piece of software. Seeing some comments indicating various issues, I paused before downloading... but it worked like a charm on my first try. Note to those getting the "no video or connection" screen: are you on the page of the specific YouTube video you're trying to download? Make sure you're not parked on a page featuring multiple videos (such as a search result) or GetTube won't know which video you want. As to the query about where the downloads are going, click the little Settings icon when you first fire up GetTube. It'll show you that location, and allow you to change it as well. Neato!  
(Version 3.0.2)