the band's last two records "tomorrow we die alive" and "soul sphere" were pretty good but to me, they couldn't reach the bar that "the discovery" set in 2011. now ten years later and after the very promising e.p. "the simulation", boo released this banger of an album."angel or alien" is proggy djent metal in perfection. this colour-way is limited to 300 copies and released through sumerian records.