It's not a genre I listen to much, but there may be some overlap with some of the bands I like. A few years back I went to a gig by The Fierce and the Dead. There were 3 other bands on the bill that are probably classed as mathrock. It's certainly challenging to play and listen to. I'll check out some more.
I've done a few posts about prog, but not seen others using that tag. I hope we can get more discussion of music on here.