Update: Installed it (Thinkware F70) today. There's a bit of a snafu with the power hookup behind the glove box, but that isn't a cam issue.
The good news: Its easy to install and it works. About the hardest thing was getting the plastic peeled off the 3M double stick pad on the thing - it fought me pretty hard! Temporarily lost an earring because my head was upside down under the glovebox, other than that, it was easy.
From a driveway test, the video is nice and clear, and it has good audio. We'll see how that pans out driving the Jeep tomorrow.
The bad news: The support software is wonky in a bewildering array of ways. You set the thing's clock using the support software which writes the current date/time onto the SD card, then you hurry up and get it into the camera and powered up to accomplish the actual setting. But the software doesn't always allow the current time to be written to the card - in a way that I don't understand. Sometimes it works, most of the time it doesn't. Not sure what I'm doing when it *does* work.
Both windows and mac versions of the software are included on the SD card, so you load the card into your computer and run the install. The mac version - predictably - seems buggier than the windows version. The windows version wanted to self update - and the new version will only work on windows 8+, and I had to find that out the hard way. I do have a windows 10 laptop here that I could try, maybe the software works better than on my old 7 box. *shrug* Not sure I care.
The unit comes with an 8 gig SD card. That's the good news. The bad news is that there's only about 1.8 gigs free on it - took me awhile to find out why. Turns out there are skillions of temp files created, each just slightly less than 80 megs in size, leaving not a whole lot of room for videos. I probably don't care, but using the remaining space over and over as a ring buffer will probably wear the SD card out sooner than later. I think I'll be getting a 64 gig card for it just to prevent that.
As for operation, its dead nuts simple. Turn it on, and it starts recording video in 1 minute files. Press a button, and it will record for one minute starting at T-10 seconds into a separate directory. That makes finding an "event" easier - and there's also a shock sensor that will also do a similar thing into yet another directory, I think that one runs from T-10 til T+10. All videos are standard MP4 files that can be played with the included software, or any standard video player.
Inserting the Micro SD card is a bit of a hassle - the bottom facing slot is an invitation to dropping the card down the defrost vent. But in normal operation, I can't see removing/installing the card being done very often, just when you have something that needs looking at. It would have been handy if there was a USB port I could plug a laptop into, but all in all, it isn't bad aside from the wonky support software.
Oh, and it wanted to do a camera firmware update as well - which worked pretty slick - handled through the support software. The camera's voice prompts work well. I'll try to get some footage tomorrow driving, both afternoon and nite - and take a couple of stills of the installation as well.
Oh, and they tell you to NOT insert the micro-SD card into a smartphone - it apparently "can" scrozzle the thing and/or lose video. Don't understand why, but as far as I'm concerned, that's a feature!