I have owned this CD for a couple of months now.  I hadn't really heard anything about 'Tool' until I was reading a review of Alice in Chains/Dirt and they made the comparison of that album and this one.  My very next action was to get to Ebay and bid on this.  It has been one of my very best choices so far!  I want to agree with "cflynn" about Christians and this music.  I would like to add that the emotions shared by Tool on this album are shared by ALL of us at one time or another.  There is no reason to fear this music (unfortunately many many Christians live their lives out of a fear motivation, which is very sad), this is different from anything else in my music collection, and it gets WAY more than its share of playing time.  My taste in music is probably as diverse as anyone on here (check out the HUGE differences in the music that I've already reviewed), and I can enthusiastically recommend this CD to any true lover of music.  Beware that this may become addictive to some!  Get it, listen with an open mind, and enjoy!!!