Arms remind me quite a bit of Breather Resist, but not in "holy shit they ripped off Breather Resist" sort of way. It's more like Arms just took the style and approach of Breather Resist and added their own flavor of screeching guitars, feedback and creative song structure to the mix.
As a result you get a pretty interesting set of songs that will have you scratching your head at times by how this musicianship takes such unorthodox steps to keep you interested. Then there's songs that are closer to a more classic approach to hardcore like "Exchange" which blazes a thrashy trail before hitting us with a nice straight forward breakdown.
Arms is an impressive band to me and I hope to hear more.