I thought this was alright. I certainly haven’t had my ‘moment’ with Capaldi yet, and this series as a whole as felt underwhelming, but this episode had some nice moments.
The humour was a bit hit-and-miss for me. I hated the “I’m the Doctor and this is my Spoon” comment. In the hands of another Doctor it might’ve worked, but it was a bit cringey with Capaldi. However, I thought the ‘banter’ in the prison scenes was quite funny. Twelve seems to be particularly good at the sort of acerbic attacking humour that he uses on Robin in the episode. A good romp to be sure, but perhaps a bit too early in Capaldi’s run.