Thanks for all the points of view and experiences. I sure hope she does warm up to us. We do have the diffuser in the room where we initially had her when we brought her home. After we hadn't made any progress after about a month, I finally opened the door to the "cat room" to the rest of the house. This seems to be better because I have actually seen her a few times now and I even snuck in a quick petting this morning when I found her sitting on a chair. She tolerated it for a few seconds and then took off, but that was some progress! She still pretty much just runs and hides when anybody gets near her, but hopefully she'll warm up. She and Phinehas seem perfectly fine together, but she's not quite the "kitty buddy" that I was looking for for Phinehas. Maybe her personality will come out a little more as she (hopefully) warms up to us and becomes part of our family!