The 1212 is not boring. Smooth yes, but not boring. It's very detailed and it's very nice to hear so much inner detail from the recordings. The 1212M is very smooth, balanced, neutral, and natural-sounding with good midrange. It's great for acoustic music, but it doesn't have the bright edge or extra bass impact that might be preferred for music thats really overproduced with lots of digital effects and processing. I have not heard the 0404 but I assume it would be better for that application. To me the 1212M is 'perfect' in it's price range, because it doesn't have any glaring faults like a lot of cd players do, cost less money, can be used on a pc with a digital audio collection, and I think it's most prominent quality is the amount of detail it reveals. And it's definately musical and fun, for me at least - but I would probably recommend the 0404 (based on what I've read) over the 1212M if you are head-banger or hardcore rap head, or listen to bright commercial pop music, etc. vs. good old-fashioned acoustic instruments and vocals. I listen to the latter almost exclusively, so the 1212M is the perfect card for my tastes.