I actually picked up this deck last month. As a Christian, I definitely like the Christian imagery, and that's what initially drew me to it. Specifically, saints have always interested me. I've been using it for a few weeks now, and I guess my reactions are kind of mixed.
The book that comes with the cards is good, but with one caveat -- several of the meanings of the cards are, um, different from the traditional meanings. This may present challenges for those who are used to the traditional meanings. Case in point -- the 8 of Staffs -- usually means action, but in this deck, it's related to not living up to one's potential, turning away opportunities, etc.
For me, the court cards are especially hard to read, but then again, they've always been the most difficult ones for me to read.
The majors remind you of icons or holy cards -- generally do a good job of relating particular saints to the archetypes represented by them. Some familiarity with the lives of the saints is especially helpful, but not necessary.
I did a few readings with this deck last night. They were pretty good, but I felt like a lot of themes kept repeating themselves in different cards.
I'll probably have more opinions later as I work with it more, but these are my initial impressions...mixed. I don't really know if I like this one or not yet.
Allen