The customized firmware is one of the main ingredients that makes the Horyzon a very good FPV HD camera.
For $149.99 it may not beat Gopro in image quality but IMHO it comes right behind it.
If by accident you loose control of your Easy Star and hit someone or a car windshield, you will most like not hurt anyone, but a GoPro camera can, like a flying solid stone. While the HoryzonHD has a very small and lightweight camera, and I doubt you can hurt anything with it.
Rather you go with HoryzonHD or GoPro, always keep the safety in mind.
We will always search and research to bring good and new product to make FPV even better!