This is instrumental rock at it's best. I wouldn't compare them to Thrice or Finch at all either. Think Colour Revolt and Explosions in the Sky having glorious sex and having a beautiful baby boy. This is a band that truly shines instrumentally and captures a feeling of urgency unlike any other.
it's kind of like if you ever wondered what bands like EITS or This Will Destroy You would sound like with some vocals thrown in the mix. Definitely a good live band as well. If they are in your area, go see them.