I'm just getting around to these Once and Future specials, but so far they really seem like something else.  Just a real trip for fans.  Sure, I understand the critique that Big Finish is a little guilty of just bashing together existing characters for stories like this.  I can't say it bothers me much, though.  Whatever Doylist philosophy one might feel about the matter, at the end of the day this is an audio with Peter Davison and Georgia Tennant playing father and daughter in-universe for Doctor Who - you can't tell me that isn't something.  I couldn't help but be won over by this story through that dynamic alone.

Then you have all these little bonuses.  It's delightful having Colin Baker as a future incarnation of the Curator.  The implications are fascinating as is the story at hand.  The whole idea that every world the Curator creates something on being destroyed was intriguing enough, and then it wound up being this pretty sophisticated story criticizing capitalism, the value of art, and even the nature of the universe.  The far future near the end of the universe is a neat time period we only ever occasionally touch on in Doctor Who, and it's great when we explore that idea a bit like we do here.  This was pretty great overall.  It wasn't the most moving or deep thing in the world, but it had a decent amount of depth for an anniversary special like this.  I would definitely recommend it.