Whats the deal with PBIR?

So I’ve been seeing a lot of jabs at PBIR, especially when it comes to setting record times… Just wondering, is it truly a faster track? Anyone know why people put up faster times there? I figure with the FL heat it wouldn’t be the best place to run, especially since the b8 s4 doesn’t like high heat conditions.

I have plans to trailer my s4 down to West Palm beach this winter and am pretty excited to run there if it’s truly a faster track.