The camera does what it says. It's nothing amazing, nor does it "help" in any way with driving, it's just a gimmick to impress your friends. The only thing I have found extremely useful is the notification for a stopped car in front, which one day, after installing the ADAS (see below), saved me from a collision because I was distracted and the camera saw the stopped car in front and started beeping. The rest of the warnings are not necessary, I recommend this particular one!

As for the ADAS, I'm mentioning it here because it is answered in the Questions, but it took me a month to find it...!

After installing the camera and attempting to upgrade, there is a chance it will give you an error with the message "the program seems unusual, be about to exit". There are several methods on the internet that you can try, but the one that worked for me is to make a copy of the application on a USB stick and copy it to your computer. From there, install it on an Android Emulator (BlueStacks, Nox, etc. - I did it with Nox) and go through the upgrade process. If the installation is successful, long press on the application icon and select "Export apk" and this will save the updated application as an apk file on your computer. Transfer it to the USB and then to your android unit in the car and install it.

This thing bothered me for about a month.

Update:

Something I should have known before getting the camera but learned along the way. The camera records CONTINUOUSLY! Without needing to have the application open. I had heard about "camera black box" but I didn't expect it to work like this. In the event of an accident (whether it's your fault or happened in front of you), the camera will have recorded it (as long as the engine is on and the camera is receiving power, it doesn't record with the engine off - duh).

And not only that! If you happen to pass through a nice place, you can find the video afterwards and keep it. If you lend the car or leave it somewhere for service or anything, you can see what was happening while the car was in operation. Overall, a very convenient and useful gadget!! I highly recommend it! (+1 star in my rating!)