The apex of "must it be good? isn't it enough to just be fun?". Many hilarious bits such as baby Benton, the Doctor doing a torero bit with the Minotaur, "I'm sorry for your coccyx, Miss Grant", Jo basically killing them all at the end, the Master pretending to be attracted to a woman for maybe 2 full minutes, the TARDIS button labeled "extreme emergency", hyperspeed Bessie, "TOMTIT". On the other hand, the scene where the Doctor tells Jo a bit about his childhood was unexpectedly tender, and the Brigadier going from "Yates, can you hear me" to "Mike, can you hear me" when the bomb dropped on Yates' team really got to me. So, as you can tell, the tone is all over the place in this story, and so is the plot, but it was a good time. And we got some Established Lore moments, with the mentions of the TARDIS being alive and the telepathic circuits.