what a fantastic crossover for Donna on her year of trying to find the Doctor. Anthea spoils Mycroft. Donna would be good for him!! I was very dim about Jim from IT but eventually I got it. Moriarty working for the Master is a truly terrifying scenario!

Plus for Jim to weasel himself into an invisible IT position where he could monitor Mycroft is scarily plausible!!

This was great. It's sad to hear Donna put herself down, but it's cool that Mycroft sees her unique potential. :D