I can’t speak to the NaviPlus but I use the EC Box 99% of the time for CarPlay. It works really well but not perfect, only a few small hiccups now and then. I’ve often wondered if I should have just gotten the NaviPlus based on my use. But I like the idea of more uses I just haven’t done much with that.
I don’t get disconnected.
Here are a few items I notice…
1- 95%+ of the time I hop in, EC starts up and auto launches the zlink CarPlay app. My phone connects and I’m good to go. 5% or less everything does the exact same but it will pause on the zlink screen and display “waiting for Dom’s phone”. When I get this I just swipe down from the top of my iPhone screen to the menu (I forget what they call this), press and hold the Bluetooth button on that menu until the devices show and click the EC Box. Then it connects. I’ve never had this added step not work (jinx).
2- I love the split screen for Waze and music that CarPlay now offers. Displays both at the same time.
3- Waze sometimes doesn’t always have a GPS signal. It displays the no GPS signal in red on the phone and I’ve had this issue even when using it without CarPlay as well as in my wife’s Highlander using CarPlay. Definitely a phone issue.
4- Bluetooth calling: 65%+ of the time the phone calls made and received using Siri and CarPlay connect through the Land Cruiser BT. It sounds great. The other 35% it connects via the EC Box and it’s not great. Callers say it’s echoed and crappy. When this happens I pick up my phone and use the speaker button on the call screen to select Land Cruiser instead of the EC Box. A nuisance but not terrible.
5-I use Siri a lot and it works well for texting. The read back quality is not great but it works.
6- Audio (music) quality is pretty good. If you’re an audiophile you’d probably be disappointed but it’s not bad and a big improvement over the old box. I stream Pandora and Apple Music. That’s about it. Podcast quality is ok.
I think a few of us that had the old box were in contact with Micheal a lot. I can say with this one I am in no contact with him. I works well enough not to bother.