I've had the NX-7000 installed for a couple of months, and generally I'm pretty happy with it. The user interface is poor, but once you get used to the screwy design and on-screen buttons that don't look like buttons, it works well.
The only major problem I'm having is with Bluetooth. Pairing the first phone works great (once I figured out the overly complicated menus). BUT...it won't let me pair a second phone. Once the first phone is paired, all pairing menu options are greyed out ("Search" and "Open"), thereby preventing any further phones from being paired. I first need to unpair