I own the TuneCast II since almost a year and the small part can really recommend. I use the part mainly for my iPod to listen to my music in your car or hotel room. The quality is rather mediocre in the car, but what mainly is due to the frequently changing transmitter frequency. You just have to change the frequency often times. Overall, do you enable but not the TuneCast II attribute, but rather the art itself.
So I can give an unqualified recommendation to buy, especially for such a low price!