This came out in 1999 – or at least that’s when I got it. Here’s what I said about it back then (with some minor editing):
There are Latino bands that bring tha noize, like Sepultura or Soulfly.
There are Latino bands that get groovy and superfly, like Molotov and Cafe Tacuba. There are even a few that mix it all together pretty well, like Los Fabulosos Cadillacs. But nobody really slices and dices it up like Puerto Rican quartet Puya, who mix and match mucho macho metal, slinky salsa, sweaty funk and even Santana-esque rock into a Frankenstein rock monster that’s not only fundamentally sound — it’s spectacular.