Hmm. I find it interesting that (from what I've read/seen) reaction to this series has been pretty positive, but in certain places it is overwhelmingly negative. Obviously, this is a subjective thing, and I understand a lot of the criticisms being put forward, but I can't help but feel there's a bit of over negativity going on. Time Heist was as good as most of Series 2 and 3 (nu-Who), and yet those are proudly proclaimed as the 'golden era' by a lot of the same people who stamp down on everything Moffat does. Not necessarily here, mind you, where most of the criticisms are reasoned and reasonable, but in other places. For me, this series has been enjoyable, well paced, fresh, and chock full of good themes. I can't help but feel people are holding the show to a standard that never really existed.
I, for one, enjoyed it. A fun little romp with no real significance outside of the episode. Capaldi continues to be a breath of fresh air into the show, Clara's character is becoming a little more fleshed out (though I've got to admit she is a bit Mary Sue-ish, which is a frustrating misuse of Jenna Coleman's wonderful acting), and, unlike last series, it seems they're telling stories that are the right length.
Hated the random scene transitions, which made an otherwise well directed episode a little bit jumpy. Enjoyed Madam Delphox, who put in a good performance, but it irritated me that we have ANOTHER sexy suited suave lady villain (I'm looking at you Missy, Madame Kovarian, Miss Hartigan, Ms Hartman... AARGH!) I think it's excellent we've got female characters in such prominent roles, and female characters as villains, but every. single. one. of them is the same character. Can't we have a female Moriaty, or an older woman, or someone who isn't as sexy as they are evil? (and this problem stretches beyond Who and Moffat, mind, though he is a repeat offender).
Loved the Teller though. Always have been a huge fan of realised effects rather than CGI, and even though he was a bit monster-of-the-week he was still lovely to look at.
7/10 from me. Decent, enjoyable, probably quickly forgotten.