Thanks a lot for taking the trouble to record this !
I can see the things that the user "demolition" is talking about. But still I think it is pretty good picture actually, they did a good job. I noticed that I looked at the wrong review/box at the retrogaming review site, the box you all are talking about did get a rather good review with the price tag in mind.
When I designed AMIV I just wanted to do something by my self, basically I was bored. I did not even know these Chinese boxes existed until now
I think AMIV has a different design and approach, it is not doing any magic stuff. It just plainly takes the pixels from Amiga and puts them on the screen, no lag, no interlacing(assuming non-interlaced input), no shadows, artifacts, de-interlacing etc. Using the new board the user can connect it to a computer and even fiddle around with individual registers in the converter chain. User can even change the Verilog code for the FPGA and flash it if they would like