Generally, I'd rather pay more (if I have the money) for something I'm sure will work, much less work well. I could get better sound and equivalent visuals with my camera, lol. (Although, I payed a lot for the nice camera I have... but I'd rather not take the time to set it up for that when I could use a capture card that copies direct to my computer). I mean no offense, but that vid sounds almost like "Youtube Poop" xD.... OK... that was harsh... I apologize. But it looks unbelievable for the 5 dollars or whatever silly low price you payed.
Edit:
Wow... even more astoundingly unbelievable quality for a five dollar card! I maybe could be happy with that quality, I just have a hard time trusting the price tag. Still, I would prefer higher quality and will probably end up getting more of a "sure thing". However, more homework obviously needs to be done before I commit to buying anything.