It actually reminds me a bit of Gurren Lagann, in the way it acknowledges the basic material is not at all original, and cuts out all the boring crap in favor of just getting to the good parts. Of course, TM's nowhere near as good as GL (when Gainax bothers bringing their A-game they're pretty much unstoppable), but it is definitely well-crafted; I dig the weird, ornately occult monster designs, and the fights are fluid and not padded out with posing, reaction shots, and pointless exposition about the nature of their powers (Kubo Tite, please see me after class).
The show is also pleasantly short-- fighting shows almost inevitably slide into tedium as the lengthy fights completely wreck the pacing, but this is only one season long, and the first half is basically one compact story. The somewhat breathless pace leaves the characters lightly sketched in at best, but frankly, they were never going to be that deep anyway, so I'd rather they not belabor the point.
Full disclosure; I've only watched the first half of the series so far, so it could easily
all fall apart later, but so far it's been a very pleasant surprise. This probably isn't
going to be an all-time favorite, but I genuinely enjoyed it, and it's kind of sad that
that's become so rare that I feel the need to point out when a show has enough basic
competence to rise above mediocrity or amusing bathos. This is thoroughly enjoyable pop
trash, and I'm a little puzzled it doesn't have more buzz.