Dream Theater is one of my favorite bands. I bought a ticket to watch the DT later this year with Portnoy. I watched them back in 2015 and it was great. Petrucci is a Guitar God.
I have lots of great memories of listening to "Falling into Infinity", "Once in a Live Time" and "Metropolis" back in the late 90s along with Pantera and others. "Awake" remains, to this day, one of my favorite albums ever and the reason why I got a 7 String guitar.