According to the info sheet Zubrowska blend death metal and metalcore. I don't really hear much metalcore on Family Vault, but more sort of noisy music similar to a lot of the material released by Relapse Records. The band is also inspired by The Dillinger Escape Plan, Pig Destroyer, Cephalic Carnage, Cryptopsy and Converge so that explains a lot. I didn't like the music much to begin with, but there is something slightly compelling about what Zubrowska does. The music is very experimental and fairly unique. The band really gets around in the musical landscape during Family Vault. Zubrowska are good at blending the mellow and moody with the brutal and downright aggressive.
The clean shouting vocals provide a good contrast to the guttural growls. Often the music breaks down into small and moody pieces only to once again explode in pure violence like in songs such as "Maniac Rockers From Darkness" and "What a Wonderful World". Family Vault is not an effort that immediately sinks in - it takes a bit of effort, but with a little patience there's actually some very good music here. Particularly "C.O.V.E.D.", "Maniac Rockers From Darkness", "'cause I Just Can Love Some Dead Persons" and "What a Wonderful World" are superb. If you don't mind music that is different and perhaps something a little out of the ordinary then Family Vault is certainly worth taking a close look at, but be alert it could be additive.