First the problems: I began using this product under Windows XP home edition and found several bugs. The metronome and tuner would not work, and the menus had extraneous symbols. None of these were a killer, but a bit annoying. Then I switched to my old computer running Windows 98, and everything worked fine.
For the program itself, it's great! There is video of the instructor (sometimes with a split view to show both hands), songs to play along with, an animated fretboard, audio clips with more suggestions or reminders, a guitar chord dictionary, and the aforementioned tuner and metronome. Portions of the music can be selected to repeat, to aid practice. The songs include the voice and guitar parts. A very good program for a beginner bassist.