I've seen Tool live like 6 or 7 times. Last two times were *AWFUL*. Sound was way off. Literally couldn't tell half of the songs; just blended into each one. Maynard with his "I'm hidden on stage" bullshit. Visuals (large LED displays) were adequate. Best performance that I've ever seen them do was at the Cumberland County Civic Center in mid 2000s or so. Went with 5 friends. The stage and much of the arena was filled with smoke. They had really strong lasers putting on an awesome display in the arena. Sound was great. Songs were good. I think this was around 10,000 days album release/tour, maybe before it. Another good show was when they were on tour with Meshuggah. That was fucking awesome.