I bought this to complete my Tool collection.  And, I have to be honest, if I wasn't a rabid fan already this EP wouldn't impress me much.  In retrospect, having heard the masterpieces Tool would later produce, I can hear hints and glimmers of their future genius here. But, if this had been my introduction to them I might have passed on "Undertow" or "Aenima"  (both of which I loved from the get-go).