all in all, it's fairly similar to my experience of Harry Potter as a child (everyone else at school loving it, and me being bemused by the fuss).
Now I genuinely enjoyed Harry Potter, even though I wasn't a kid when I read it. And I re-read it recently and enjoyed it again. However, I'd never claim that Rowling has literary writing chops. I enjoyed the overall voice and tone, but I definitely found the writing uneven in places, the punctuation inconsistent, and it was also rather adverb heavy.
It's hard to explain why I can like some books in spite of what seems like to me to be mediocre writing at a craft level. And there were some things about NoTW that were clever and well done re world building, magic college, and magic system and so on. So maybe it was just Kvothe's arc that didn't grab me as much. I suspect book two would drive me even more nuts, if the perspective becomes even more egotistical and focused on his specialness. Of course, some have floated an unreliable narrator as an explanation for this, so maybe he really wasn't all that hot (he certainly doesn't sound or look terribly hot based on in-book descriptions or
cover art I've seen) or have been able to teach a sex goddess about the arts of love.
I agree that the idea of a formerly great mage/hero ending up as an emotionally scarred, burnt-out husk is intriguing and far from unrealistic. He's not the first writer who's done this, however (and in these cynical times and with the tendency for series to go on and on and on long after a happily ever after ending would have worked, he certainly won't be the last). Heck, Le Guin had this element in her Earthsea series, especially in the later books.