Years ago I bought both a Steam Controller1 and a Logitech F310. The steam controller struggled to work at all outside of steam, was uncomfortable to use for any extended time and half the games I owned needed a ton of setup to be playable.

Despite being cheaper the Logitech worked with everything, required zero setup and is comfortable for hours. I sold my steam controller and am still happily using the F310.

Users didn’t flock to zsnes because it was the most accurate, they used it because it completely nailed the user interface for loading, saving, input, and configuration.