I have to say that I once more found myself falling in love with Rothfuss's writing style and tore through the book in a matter of days, but I have some concerns. My main concern is that... this was the second book of three and it seems there is a LOT left to cover:
The whole part where he goes to Severen, saves the king's life, works with the mercenaries, spends time with Felurian, and trains with the Adem is a complete waste of time from what I can tell. Don't get me wrong, it was a riveting read and I enjoyed every page, but about 500 pages in and from then on I kept thinking, "Okay where the hell is he going with this...?"
All in all, it just seems like the second book raised a bunch more questions and answered basically none of the previous. I don't see how Rothfuss could maintain the pace of the story he's laid out in the first too books (which is a great pace in my opinion) and finish up in the third book. I hope he doesn't rush the story in order to tie all the loose ends he's thrown out there in the first two books. Instead, extend the series. You'll get more cash so the publishers shouldn't mind and the fans will get a better series overall.