Once again, I liked this episode. I can definitely understand why several of you feel this is “real” WHO.
Again, take this non-fan’s view with a grain (or more) of salt, but in regards to @andyb’s commentary on the lack of an arc, this is precisely what I wanted. I was one of the ones who found many of the previous arcs during Smith’s time absolutely no fun at all. I feel like the most intriguing WHO to me has been episodes where it doesn’t matter how I catch it or when I catch it, whether I know that numbered Doctor and companion or not: I can watch the entire episode completely independently. The convoluted arcs really killed my enjoyment, especially since sometimes I didn’t want to binge-watch OR wait for the next episode. And without chemistry of a Ten/Rose, or a really, really compelling (to me) Doctor, arcs just take too much out of me.