It's really straightforward to turn your character into a hit-and-run master, and the mobile feat is perfect for that kind of playstyle. The basic concept revolves around three main advantages that work together beautifully - you get an extra 3 meters of movement speed, you can dash right through difficult terrain without slowing down, and when you hit someone in melee they can't make opportunity attacks against you as you back away.

The real magic happens when you pair this with certain classes that already excel at mobility. Rogues are probably the most obvious choice since they can use their cunning action for other things instead of disengaging, while monks can combine it with their already impressive movement abilities to basically dance around the battlefield. Even regular frontline fighters can make great use of it, especially when you stack it with other movement-boosting effects like longstrider or haste.

Something worth keeping in mind is that the opportunity attack protection only works against the specific enemy you actually hit, so you still need to watch out for other nearby threats. But once you get the hang of it, you can pull off some really clever moves like darting in to attack a boss, then retreating without fear, or navigating through nasty terrain effects that would normally slow you down. tip: works especially well in swampy areas or against enemies that like to create difficult terrain.