Summary: So I've had the Ego for a couple months now. I could never get it to update the firmware when I got it. first irritation. But it's dealable. The recording is great when it actually records. I never do the still shot's so I don't have anything to say about that. The built in WiFi is amazing and works great with the standard 1 - 2 second lag. Sound is amazing. The build quality is great I love the standard 1/4" thread I've made several mounts for my bike.
Summary: The video recording quality is excellent but And this is a major drawback, really depends on the camera positioning - position the camera too high (pointing to the sky) and the auto-exposure can darken the video....SO viewing the image using the WiFi really matters AND THE ANDROID APP DOESN'T WORK. This statement is based on attempting to download/run the Android App on three differing phones (one Motorola and 2 Samsung and two differing tablets (Samsung/Acer).