If you don't mind the flashing circle it's otherwise pretty much OK. My gripes:
1. FLASHING CIRCLE in nav... god is this annoying and no way to turn off.
2. Auto switch to Radio if bluetooth/usb disconnected. This is not a big issue except that usually bluetooth needs to be turned up to hear anything and than the switch results in my ears getting blown out.
3. Lack of nav customization, you really just get the one experience that come by default.