If you don't like or follow Doctor Who I don't see how the episode could be of any interest.
Eleven Doctors, or twelve or thirteen, depending on Who's counting, you have to have been there for at least a season or two to find The Day of the Doctor to have any depth or creativity.
The internal logic and huge number of self references were what made the special interesting and, indeed, gave it depth. And the major event in the Who universe, which has been hanging over the series for the past seven seasons, provided the basis for the plot line.
It was funny, but most of the jokes came from self deprecating humor and over playing the already established characters of the two most recent incarnations of the Doctor.
Lots of running around and use of aliens and human foils to keep the action going. But it's Doctor Who. If you can't stand silly plot twists, you can't stand the series.
Overall it was a great attempt to please the fans. Even with the genocidal centerpiece, it was a lot lighter than almost all of the regular episodes. I spotted at least two contradictions to events in other episodes which sort of invalidated the genocidal premise - but that's quibbling. Written for the fans, by a fan, it was worth the time and inflated price.
Read several reviews. The one that came closest to my feelings is here.
http://www.denofgeek.us/tv/doctor-who/231149/an-in-depth-look-at-doctor-who-the-day-of-the-doctor