Identical twin here. Overall pretty nice, as he shares pretty much all of my interests. I got sick of the twin telepathy and you're interchangeable jokes really quickly though. Always pisses me off when identical twins are portrayed in media as carbon copies (pisses me off even more that I can't think of a subversion to that trope). And it's always annoying when something dumb my brother did always came back to haunt me. But for the most part is not too bad of a deal.