OP seems to be settling right in. He still avoids the dogs and they are still very interested in him. Bonnie seems to be getting better about his being here…there is less hissing on her part and a lot more curiosity. He is also getting much braver. He spends most of the day hanging out in the cat tree, or on the guest bed, or on the window sill in that room…but in this morning he was brave enough to come snuggle in bed with me for a bit. And in the evenings I think he also ventures out when the other animals have calmed down for the day.