SFX (UK fantasy/sci-fi/horror) mag seems to err on the side of polite, although I don't think she ever got five out five stars in the rating scale. They seem to have stopped reviewing her books though, because I haven't seen one for any of the Merry Gentrys past A Stroke of Midnight (I think), and none for Anita Blake since...the one after NiC (so years, really. My apologies, as my brain appears to be failing me).