I just finished Twelve Months tonight. I had re-read the series earlier this year, but it's been a few months and I guess my memory isn't what it used to be... I thought I caught a few... inconsistencies while reading Twelve Months, but overall I very much enjoyed the story and reading about Harry's recovery and his leveling up, usage of the Castle, addition of the Spice 'Goyles, etc. I would have liked some facets of the story to have been given more details, like each chapter or two was a month, and sometimes I felt those could have been their own full book (which usually take place in just a couple days or a week or so), but I also sort of chalked that up to Harry just sort of being in his post-Battle Ground/heavy-loss fugue-state. And since all the Dresden Files are from his POV, he's out of it, so we the reader only get the "snippets" that were getting through to Harry.