I feel like the first appearance of the Master is given a lot of weight in Dust Breeding, and there's a side of it I quite enjoyed when this famous villain goes up against the Doctor in a psychic duel here, but outside of the big climactic moment, the rest of the audio left me strangely uninterested.  While initially intriguing with the use of the real-life missing Scream painting, when we get to the Warp Core stuff, it quickly descended into what felt like a standard and pretty boring sci-fi affair.  If it weren't for the Master's presence, this would be a totally forgettable and kind of worthless Doctor Who story.  The Master does add something.  The Seventh Doctor gets to interact with him in a way he didn't quite get to in Survival.  Otherwise I didn't have that great of a time overall.