I've been interested in the V3-Alter for a long while. I like the look of the hardware, and unlike other cartridge dumpers it's able to adapt to other systems with add-on board.
When my arrived it sadly was missing the SD Card Reader, an issue from the manufacturer. When I brought it up to support the missing components were quickly shipped out. With everything I needed.
Learning the software and programming the Arduino wasn't easy especially since the default firmware didn't include Atari or Virtual Boy systems. But after some trial and error I was able to get it to work.
But then I ran into issues with the Lynx adapter. It looked fine. But the software bugged out. The seller again assisted and we were able to confirm it was a software issue not the hardware. For those trying at home. Go to an older firmware to see if it works. 14.7 is the newest firmware I tested which didn't just infinity looped AUDIN=0 BLOCK=2048.
Overall I am happy with my hardware even if the software is not perfect. I am also extremely pleased with the seller. They fixed error when it was noticed, and went above an beyond to assist me when I ran into trouble.