i love it! very cool. i think it works because it's like a cross between ross and hugo/jago i can just see a baby Roscoe.
i love quirky names though. i also like bruce, donald, victor, howard..
my dad's cousin who is about 75 is a roscoe so i would have been embarrassed to use it in case he thought it was a bit odd. but other than that, it was so near the top of my list.