Probably my favorite mode in fortnite, I dont know why it's more popular. The game feels extremely fast, maps are expansive and are distinct in its layout. And the mechanics of flying and flipping especially are great ways to spice up the game loop. It just feels really good to play consistently, its not perfect especially with the emphasis on checkpoints, but It's consistently fun everytime I play it.
Sometimes this is Mario Kart 8 at home. I think it's my favorite of the new modes they've added, but there are times where the collision is borked, and the assets are reused in ways that feel bad. I do enjoy the feeling of some of the tracks where you're able to finish 6 seconds in front of everyone else because you can route better.