Sylar

It wasn't so bad, really--more distracting, when he used it, than anything else. With things, it was like living in a memory. The rest of the world just fell away and it was like he was part of the history of whatever he was touching--like walking in a dream, except what he was experiencing was real It had happened. And in that instant, because an instant was all it took, no matter how long the whole thing felt like it spanned, he was somewhere else. A man lost in a daydream.

With other people, well, that was just about as complicated as it was to explain. With other people--like Mohinder, since he was the only living thing he'd used it on--it was more impressions of feeling, and very basic ones at that. Pain. Frustration. Fear. Joy. Love. All of it as vivid as if he was experiencing it himself, despite the fact that it was only an idea, without reason or cause attached.

If he wasn't telepathic already, he would have said it was useful as hell.

"I'd distracting," he answered finally, popping in shoulder in another shrug. "But since you have my ability now, it might be easier for you to turn it on and off."

He was always better at using other's powers than the original owner themselves had been, after all. And, through his aptitude, he'd been able to suppress his powers, when he wanted to--most notably his ability to heal, so that Mohinder could mark his territory, when he wanted to. Of course, when he suffered mortal wounds, his regeneration kicked back in on its own, but his other powers? They stayed off--for the most part; his hearing was rare exception--until he willed them back into use. He simply had that much control.