I enjoyed KKC when I first read them, but I haven't re-read them. I think Rothfuss is a talented writer, but given that the third book is MIA for going on 10 years, I'm not inclined to recommend it to anyone, unless you're OK with a fairly good but un-and-likely-to-never-be-finished series.

I'd put almost all of my other recommendations above KKC.

That said, it's a pretty popular series and comes widely recommended, so YMMV. I personally would skip it and read something else.

Word of warning: Gentlemen Bastards is equally unfinished -- but I have faith that Scott Lynch will eventually publish the next book before Rothfuss did. Plus I consider the first book (and to a lesser extent, the second and third books) to be fun enough on their own that I'm not aching for a fourth book in the way that KKC leaves a story unfinished. In short, I'd still recommend reading Gentlemen Bastards :)