Watched the Christmas special, and found that I enjoyed it very much. Not as ridiculously jam-packed with ideas for the sake of plot twists (as has been the case with all too many of Moffat's episodes the last couple of years), and ditched the overly-schmaltzy tone of the last two specials for a more bittersweet-yet-hopeful one. We've got a brand-new mystery leading into the coming season (and no indication of the status of any of the previous ones, many of which are still dangling), but it's one I expect will be resolved and am looking forward to seeing that. In addition to being pleased with Moffat's writing in this episode, I'm also happy to see the cosmetic changes...the new console room looks far better than that toy-explosion-embedded-in-brass-and-glass monstrosity from the last two seasons, and the new intro sequence is all kinds of spiffy. Can't wait for the show to return!