Date: 07/03/2017
Author: DAMIEN C.
Love it, it works great - still trying to figure out how to configure Retropie to use it to it's fullest extent.
By default Retropie scales games to fill the screen, which ends up causing stretched pixels on parts of the image. I've found that you can edit the config files to set the aspect ratio to "square", and disable auto aspect ratio, while and enabling integer scaling to make the image appear correctly. The downside is that not every system fills the screen, so you end up with black bars. I am using a Sony BVM-20F1U, and things look sharp and crisp with this method, but systems like Gameboy Color, NES, Game Gear, etc. don't fill the screen. Systems like the Genesis/Megadrive however do.
Just got it tonight though, so I'm going to keep trying things.
Regardless, this is amazing so far.