I've been flying my GDL 39R for a couple of months now.
Here's a question for the experts: Does the 39R have the same Bluetooth capability that the 39 has? I haven't tried to pair it to my iPad yet and can't find any information in the manuals to confirm this. Not that I need it, but it might be handy to try to get the traffic and weather up on the iPad screen in addition to the G3X.