Just need to share my experience with ZWIFT state-of-the-art-technology here.
Since my ANT+ dongle broke last week, i had to try to connect via Bluetooth in order to do a ride.
You know, i had to learn the ancient version: Trainer --> Bluetooth --> Phone (Android) --> WiFi --> PC --> Wifi --> Zwift.
I hoped that the ANT+ regular power drops of about 10 per hour would be less with bluetooth. And: right, i did not have to bear a single power drop!!!
Reason: for about 2 hours i tried to connect the trainer (kickr) to the phone via ZML, but it just wouldn’t happen. Nothing, absolutely NOTHING helped: turning off/on phone, trainer, PC, power supply and whatsoever, ZML simply refuses to connect to the trainer. Since the trainer ist NOT the cause (wahoo utility connects just FINE), both phone and Laptop are on the same Wifi it has to be the app/zwift game responsible.
Guys at Zwift: it is just ridiculous, that you folks can’t get direct Bluetooth connection between trainer and PC up and running!
WE ARE PAYING FOR YOUR SOFTWARE!