Cardinale are/were (due to a sustained period of silence) an American sludge band that formed from the ashes of Sea of Thousand, interestingly enough on only one album. As well as being only one album, and a short one at that, Cardinale's 31:13 is also only one song, that runs (surprise, surprise) 31:13.
Put aside the novelty of that, and it actually works surprisingly well as a piece. Unlike most sludge metal, this actually embraces a sense of progression, not sticking around on the same endlessly repeated parts. Its slightness comes from being not greatly memorable despite the progressive nature of the piece, as well as having a hardly original lyrical journey.
While it's hardly bad, you may find it's not the best work ever - and likely, it won't be a piece you replay often. This is still decent sludge however, and I can't fully discredit it. 3/5 seems about right, it's good, but not essential stuff.