"Tech death" doesn't normally do much for me either to be honest, but I agree this one has some nice clean leads that makes this way more listenable than I would've expected from the genre
Actually I don't even know if "tech death" a fully accurate label for this, Metallum lists the band as "Technical Death/Black/Thrash Metal" which just sounds like one of those hyper-specific joke subgenres people make up lol