Looks servicable if the entry level is low enough that the damage is good. Otherwise you are hoping the GM mixes in under CRed encounters or bring along cattle or mules to slaughter before doing your assaults. Limited to one attack unless you can make more than one, or have some funky feats (not a pair of weapons in that case, so rapid-strike is out).
Normally bites do all three damage types. Any particular reason you left out slashing?