He likes it. But, it has to be somewhere he's not eating in front of it, for some reason.

He doesn't get really close to it, but he sings and chirps to it... it's close to me on a table.

He still sings to my shoes, and to Solomon. He's still not liking hands, though, once in a blue moon he will let me pet him with my pinky finger...

All in all, since he's an old bird, I think the mirror is entertaining for him, and not something he's obsessed with.