To Rouse Leviathan appears to have aroused a lot of interest among horror readers, judging from the response on social media and elsewhere. Richard Gavin, one of the contemporary masters of weird and occult/esoteric horror, says the following:
Matt Cardin is one of the most vital figures in 21st-century Horror. Whether he is penning visionary tales of metaphysical terrors or dissecting the genre to find the underlying philosophical pulse that gives the monster life, his work never fails to astonish me. To Rouse Leviathan is a landmark volume, one that I can turn to again and again with increasing appreciation.
Richard Gavin, author of Sylvan Dread