I had a Viofo A229 Pro Duo professionally installed in my Air Touring. I used the same installer who had worked on my Accord and my wife's Odyssey 6 years ago with a similar Viofo A129. Viofo probably is missing some bells and whistles compared to Thinkware and Blackvue but I've been pretty happy with them, their recording quality and customization. The new A229 has significantly clearer camera quality, which makes it much easier to pick up license plates even in low light scenarios. They also work in parked mode and you can customize how you want it to run (low bit rate, certain # of frames per second, etc) and for how long (I have it set for 3 hours, just in case I forget to turn it off when I park at home. I never park anywhere outside the house for more than 3 hours, but I'd probably change this if I were still using the park and ride).
I don't know if we're allowed to post amazon links, but the A229 pro duo is available for $210 at the moment on Amazon with coupon, which seems like the lowest price I'd ever seen. It goes on sale regularly but generally just for $280 or so (which is what I got it for), so I think this is a great deal. It's a "lightning deal" so it probably won't last long - usually the $70 coupon is only available when Amazon lists it at full price, so discount price + coupon is pretty great. Wish I got this deal lol.