Oh I also ordered the 128 GB SD card from Blackvue directly. It was 115 US (including shipping). The included SD card was too small as I wanted to save video for a longer period of time.
The "impact detected" while parking is really useful for ensuring nothing happens when you leave the car parked. I find the impact detected while driving gets triggered quite a lot (even at the lowest settings). Maybe a reflection of driving style
It is connected directly to the Tesla battery. I leave it at the airport and overall battery drain @ 1-2% per day.
I use the Android and Iphone apps to monitor the real-time feeds often (the Android app used to crash all the time but they fixed it).