I just plopped my existing OBDLink MX+ into the slot and pulled up the Car Scanner app (carscanner.info) - was greeted with a ton of info. The port is on the lower-left side of the driver area, near the speaker of the door, as I recall. The port is facing outward, in a small cutout almost designed to fit an OBD dongle, not tucked up under the dash.
I was quite impressed with the amount of data it presents.
I want to see what info is available - temps, cell voltages, and get stats about my V2L usage... I know I've used at least 2x-3x as much energy in V2L than I have in actual driving. haha. It's the reason I bought the car in the first place and I make extensive use of V2L. Was hoping to get more stats out of it, but at least at the moment, I seem to have confirmed that at least the V2L output capabilities are written in software, not hardware (e.g. 16 amps, 120 volts - likely can be configured in the future by PLC-signaled digital comms).
I don't use ABRP though, but I am hoping that there may be something akin to Leaf Spy in the future, where we can configure some vehicle features using the app. That'd be nice to be able to tweak some annoyances...