I've used the Ambery S-video to VGA converter (they do have several models to choose from) for a several years and have nothing but good to say about it's performance, it handles any signal or any Atari interlaced software graphic mode I throw at it wonderfully, upscaling and motion-blur correction, lag-free, etc. But an Ambery S-video to HDMI will be the next one I buy if need be. I fully expect the HDMI to surpass my VGA with flying colors (pun intended). The important thing to me is that it's an Ambery product, I also have an Ambery RGB to VGA converter I've owned for more than a decade and it has also worked and still works wonderfully. I use switch boxes and all my composite/S-video/component/RGB devices go through these two converters output to what ever VGA compatible monitor/TV or projector I use them with.
Mind you, the converters can only do so much with the signal they are given, if the source signal is poor, the output quality of the converter will necessarily be poor too, the Supervideo 2.1 video modification I did to my 1200XL gave it fantastic S-video, and so I get a fantastic conversion through my converter. It really is VGA quality output, my 1200XL on my LCD TV via VGA has a picture every bit as sharp as what the Altirra emulator has on my LCD monitor, but much more vibrant color to boot!
Edited by Gunstar, Thu May 31, 2018 10:30 AM.