Their website is slick, modern, and updated - which is more than I can say for many brass quintet websites. Their press material looks outstanding, and the sound files and videos on their site are impressive.
Even though the group has only been in existence for a few years, they have accomplished a lot, including winning several prestigious competitions. They have an excellent example of a press kit here (under Press in the main menu). This quote is from their publicity materials:
Praised for their “high level of musicality and technical ability” and for their “clean, clear and precise sound”, the award-winning Axiom Brass Quintet has quickly established itself as “one of the major art music groups in brass chamber music.” Winners of the 2008 International Chamber Brass Competition and prize-winners of the 2010 Fischoff Chamber Music Competition, the Preis der Europa-Stadt Passau, the Plowman Chamber Music Competition, and the Jeju City International Brass Quintet Competition in South Korea, the Axiom Brass is dedicated to enhancing the musical life of communities across the globe and educating the next generation of musicians.