The look speaks a at first. CDs are now eh become something unfashionable and the mere saving of space in the car without thousands of flying shells and somehow in the device itself makes itself felt.
A USB stick you can anyway favorite songs almost infinite (where one of the stick just leaves) put together and it is a not boring even when traveling from Hamburg to Tuscany.
The ease of use is relatively limited: Tight buttons make it for a man with coarse fingers not easy, but as a woman I do not see any problems. ;-)
Radio reception is between the federal states over longer distances somewhat problematic: It rushes often and longer than in my old blue point. Important transport information has been presented but very reliable and clear on my tours.
I personally phoning in the car very reluctantly, even with hands-free, because I feel distracted me anyway. I have tried it yet (but standing) and am satisfied with the voice quality - tests while driving I see from the reasons mentioned above.
Also, my Blackberry was recognized via Bluetooth and immediately I could play my songs on it without loss of quality - I will use but it looks like "old-school" USB stick, as it is most convenient for me.
Conclusion: Good sound, easy installation, anti-theft device through removable control panel and look nice: I like it!