It's currently my favorite build, but that's partially because I also really like the theme of the character it's on. I wanted a carnie/harlequin character and thought Ill/Kin really fit it.
Play-wise, it's pretty fun to me, but I like strange builds and don't really optimize too heavily. (Though I will be shooting for perma PA.)
Really, if you're curious about it -- roll one and run through a few DFB trials. You'll get an idea of how it handles.