I look at this entry in TOOL's arsenal as an introduction to better prepare you for the audio onslaught of 1993's Undertow.  This disc leaves you wanting more, you can feel these guys stretching their musical tenticles but at the same time feel a little teased.  Rocks more than anything out there but lacks the melody, maturity, and angst the rest of their entries are saturated with.  Works great if you need a quick fix of Tool because of its length; its short and kicks.  Early disc pressings have the hidden track which, after a listen, shows that the band also has a clever sense of humor.  A good origin for the best band working today.