Yes, but quality and perspective depend on the intelligence of the reviewer, not his/her familiarity with the genre.

I think quality depends on the intelligence of the reviewer, I think perspective depends on, well, the reviewer's perspective. And as I said to Dan, a naive perspective can have useful things to say, but it can also miss the point spectacularly in a way that a more familiar perspective is unlikely to. Swings and roundabouts, perhaps.