Eh, I suppose I am mostly indifferent, maybe leaning more on the "dislike" side, because I will not watch them. I don't really see the appeal of someone unboxing a shiny, new toy, because it's kinda like when you're on the other side of the candy store glass - you see it, but you can't have it. Especially if it's something you wanted yourself.
Not to mention it does not really make much sense, either. Okay, you got a thing and you unboxed it... That's it.