I didn't even know they were reuniting. Last thing I heard from Billy Corgan was a just ok solo album.
I was just coming to bump this thread. Whole lotta meh. Car Seat Headrest is good, but I don't think worth the price of admission considering the rest of the lineup.
Hard to say for sure when they don't tell you what the rest of the lineup is.
I actually dig a couple Phantogram tunes I've heard.