This is actually a good little box. I use it for the vocals but I can't always make out the creole because I don't practice it enough. (I'm gonna get more practice. ) I also use it to pick up the accordion licks. It works great. I especially like the way it changes the key of a song. Since my cheep chinese 'C' accordion is on the blink, I have to use my Bb accordion for everything. Now, the price is right. I bought the Tascam box from Guitar Center in Atlanta for about $145 or $150 or something about a year ago. $79 is a good deal to me.
I use the Winamp player on my PC (link above), along with the plug in "Slow Me Down". There is also a plugin called "Take It Easy" with the same functionality.It does the same job as Amazing Slowdowner, but it's freeware.