There are times when his voice is extremely annoying. You could say this is appropriate to his character, but its still irritating.

90% of people that complain about his voice are a bunch of hacks. They just mimic others and hope it makes them cool.
I resent this. I can make up my own mind thank you!

His voice doesn't bother me. It only bothers nubs who care about minor stuff in games like the characters voices and physical appearence.
Right, they are real noobs for not bothering about itty-bitty things like graphics and sound! Lets all go back to the good old days of text only adventures, eh?