Impossible to navigate without help

Useful, resolves many general faults.

Scam, don't bother to install. Still waiting for a refund I'll never see. Contacted them, followed their email instructions. They waited until I told them to cacell my rental to draw funds from my card never heard from them again. AVOID THIS!

Beyond bad. Completely worthless. Synced ONCE! Now cannot sync device with the phone anymore. Turned Bluetooth on and off, logged off and on, reset and downloaded app again. Nothing. Phone shows a Bluetooth connection and will control music but nothing else. Waste of time and money. The AD's work fine of course...... Do not buy, not even just for "Shipping & Handling" charges.

Some and effective