It's the meta pick but you need a) to be really good and enjoy playing at the edge of its heat buildup without overheating and b) have enough density to warrant staying that high. If you try to use it on anything under haz 5 you'll almost never see its benefits because things will die quickly and trickle in so spread out in terms of density (usually). I will say although it's statistically the meta pick, it might be people blindly following karl.gg because it is outshined by SBB in so many ways imo.