Is this a good vocal range that I have?

Well actually, i'd say you are a very very low bass. Most basses go from E2-E4, baritones go from G2-G4, and tenors from C3-C5. Don't trust the answere who said you're a baritone. You're a very rare kind of bass, not everyone has this voice. You're just a note away from the lowest note sung ever which is C1. You're -again- definately NOT a baritone, because baritones CANT go that low, and their comfort range is up to Db4 or D4.