Really good, a shockingly quick read considering the length. Sapkowski (much like George up there) did not need to add so many POVs to get the story across, but when it was good it was great.
This mixed in a famous Arthurian legend, & I would be lying if I said I didn‘t have to do a little homework to make my own sense out of that ending as it is left to some interpretation.
Fitting conclusion to the saga