For a romance novel there wasn't as much romance as you might expect. Falls firmly within the goddess worshipers being all goodness and light tradition. It would probably also appeal to fans of the Da Vinci Code, Magdeline Sanger (how to flag a character's name 101!) is an interesting heroine and her Nemesis/love interest Lex Stuart is also interesting.
It's obvious that the author has done a bit of research and found some interesting historical, mythological and legendary connections to the Grail. By making it into several goddess-related grails it makes for an interesting series and I'm looking forward to reading more of this.
Actually a few steps above most of your ordinary Mills & Boon/Harlequin romances. In my opinion actually a half step above the Da Vinci Code, with intelligent characters I actually care about, who actually know their fields! ( )