The 2007 visuals and low-quality sound show significant age today.
If you are playing on a modern PC, players often recommend turning off the fatigue system in the config files because the sleep timer is notoriously fast compared to travel distance. For a more "classic" experience, you can also add your own music by placing OGG files in the game’s music folder. To help you get started or decide if it's worth it: 18 Wheels of Steel American Long Haul
Are you interested in to improve the graphics? The 2007 visuals and low-quality sound show significant