I checked reviews shortly after starting this. I saw a few from fans of the series who said this wasn't a good place to start, and a few from newbies to the series who said it worked fine for them as an introduction to the series.
I'm brand new to this series, and I'm going to say that the first group is probably more correct on this one. I got to the last minute of this audiobook and have no idea what just happened. "She's here"? Who's "she"? Why should I care about her? I have a feeling those who've read other works in the series would instantly know, but as a new reader I'm left completely in the dark.
I'm not going to completely cross this series off my list, but this entry didn't particularly excite me. The author's voice was nice and her narration wasn't terrible, but she had a measured way of talking that bored me. The story didn't particularly interest me, and the time travel logic seemed to be a little inconsistent, but I was mildly intrigued by the quirky characters employed at St. Mary's.