The first thing to note is that you need loop recording enabled because after an email from Rexing, you can only have a 4GB single file, which is roughly 40 minutes. No major drawback there, and having the separate 10 minute files is easier to find events. If you let it hit the 4GB file, it tells you the SD card is full and stops recording. I was also advised to avoid a SanDisk Ultra SD card, after I bought one with it because Amazon recommended it. So far, I haven't had any real problems with it, but I figured I would mention it. They recommend some Lexar SD card.
So the part I think is most important, is installation. I've now installed one in a 2010 Toyota Prius and a 2016 Toyota Rav4. Installation itself is super easy, I just did the normal charger as apposed to a hardwire because I'm still a little nervous about what the actual impact would be as far as the fuses itself and I already hard to replace a fuse for a plug and USB adapter. Now the installation was very easy, but of course it depends on your car. With both cars, I was able to pull paneling away and pop the gasket out of the runs to get the wires behind everything, including behind the airbag. I was worried if I put it in front of the airbag, it could cause a problem. To drop the power to a plug, I dropped it behind the glove box where there's already an exposed hole. To get the rear camera wire from door to door required getting a rigid wire and some tape.
To attach the front camera, rather than stick it on the windshield and worry about the 3M pad getting wrecked by the sun and heat in Georgia or needing to replace it if the windshield needs to be replaced, I bought the suction cup mount. All seemed well, but there was one final problem. My windshield has a low angle and I'm over 6ft tall. The screen has a low angle viewing and I can only seem to manage a high angle.
Despite the random problems I've run into, I've been very happy with the camera. Now I'll tack on some video for the front and rear with an example of why I need a dash cam. I pulled some clips from the front and rear for both the daytime and night/early morning.
So as a final rating for the dash cam... I would say it's great for the price with a simple install.