I’ve had one since March of this year and it works perfectly as far as “you get what you pay for”.
Never misses a frame but seems to breakup much more as compared to what I see in my goggles. I have a 32 gb sd card without issue. Image quality is more or less - average.
My biggest gripe is that it has to be the last thing turned on or you run the risk of getting sync issues and image tearing along the bottom of the screen.