Be honest, if you have got this far you are going to buy this anyway, right?
It is worth your while, as the other reviews will tell you. It is an ending of the most remarkable series in Fantasy. Is it a worthy end? Almost. The problem with the series is that one of its hallmarks has been how maddeningly oblique it all is. When we finally get to look behind the curtain....eh, it's not quite what we expected. Turns out Erikson was a genius to let us imagine motivations etc after all.
It is still worth your while - and better than most books in the genre.