It is very easy to write a mediocre Dalek story and very, Very hard to write a good one.

Rob Shearman has gone and written one hell of a Dalek story. It pokes fun at anniversary episodes. It takes on the meta quality that Daleks have - the idea that as recurring villains they can't ever win. It has a good enough plot I can even forgive Big Finish for making me listen to Dalek sounds for about 2 hours