I am ok with this product, however as it is not available directly to the UK market and why I only gave 3 stars
If you intend to use on the UK, its not just a case of a simple setup. For it to work in the UK you need to adjust your amazon account 1st then recon back to UK.
I had issues getting it to work with amazon music and navigation.
The device is steady and linking it via Bluetooth was fairly seemless.
I have not used the device much so cannot comment on what other functions do or not work?