Is it a Judge or Public Defender? Full, bobbed, or spurless hammer? Blued or stainless? Fiber optic sight or post?
Also, how does the cylider lock up when the hammer is cocked? Is it stiff and tight, or is it pretty loose, I've seen both and obviously the loose has to go back to Taurus.
Either way, $350 will all that stuff is a good price, especially if it's unfired, and you could resell it for more if you wanted to.
As for opinions, I'm not a fan of Taurus, or of .410 handguns (doesn't do much for me). But, they're pretty popular right now so it would be an easy resell.
You could always use it as a partial trade on a Smith and Wesson Governor, they're 6 shot instead of 5, and I think they feel A LOT better than the Judge, plus S&W machined the cylider to where it would shoot .45 acp with the use of moon clips.
Or, you could wait until S&W comes out with a revolver that I beleive they will (it seems like I'm the only one who thinks this though); and that would be a revolver (5 shot) that will shoot .460, .454, .45 Colt, and .410