The interface is very easy to use and is divided into tabs, one for each action. The first of these is a ranking of downloaded videos so you can see what other LastTUBE users are downloading. The second tab, on the other hand, lets you search. Just enter the name of the song, album, or artist, and select the best option from the list of results. Before you start downloading it, you can play it to make sure you're downloading what you want.
Once you've tapped on the thumbnail to start downloading, LastTUBE will give you the ability to choose the quality of the download. The only drawback with respect to other similar tools is that you can't download the audio only, so you'll have to download the entire videoclip no matter what.
Everything you download will go to the same folder. That way, you'll never have any trouble finding your files. If you can't find a video you downloaded for whatever reason, you can go to the 'downloads' tab and play your favorite videos as many times as you want.