Witch's Familiar was mostly a treat but... I had a couple of issues.
The character stuff was good, the interplay between Davros and The Doctor was at times almost touching. I kinda figured where it was going though when the Doc's hand glowed, even the switcharoo. But until that point it was interesting, and I was wondering if we were seeing sincerity between the two. Missy/The Master and Clara were entertaining. I don't think I was quite as enamored by them as others but they held my attention and gave me some chuckles.
Being a fairly new convert to WHO I am always surprised at how emotional the show can make me, being that I never really watched the classic show outside of a few stories here and there.
My two hitches were this...
1.[BLACKOUT]While the Doctor planned to wreak havoc with the regeneration energy, this seemed terribly risky and without a doubt something that has to come back and haunt him later, and that's my problem... It's tailer made to be a problem later on and yet there's no mention of the probably cost. I mean... fine those Daleks in the sewers cause damage to the city... But once they are fully regenerated what then? Seems the Doc has swelled the ranks of his most hated foes to me. Was there a mention of this NOT being the case? If so, I missed it.[/BLACKOUT]
2. [BLACKOUT]This idea of a Time Lord/Dalek Hybrid... Is this from classic WHO lore? It's a big enough idea to be the focus for an arc unto itself I think. Or was it mentioned as a one off idea to gauge fan reaction? [/BLACKOUT]
Overall though I enjoyed the episode. The ending was a nice example of what makes the protagonist of WHO such an iconic creation.