They've been awesome, though I've forgotten what it's like to go to the bathroom by myself. I literally have two cats sitting and watching me every time. Wasabi has a typical ragdoll personality and lets me hold her and rock her like a baby, which still cracks me up. Ginger is more timid and less ragdoll like. Still very friendly, but mostly at night. She doesn't like being held, but likes to sit next to me on the couch. They were very, very playful until recently. Now they are quickly becoming lounge cats who laze about.
Good idea to get cat trees--mine love theirs. We have one in the bedroom and one in the living room, and they do actually use them both every day. The one in the living room is by a bird and squirrel feeder, so it's got extra appeal. They also like a big horizontal scratcher we bought (oddly, Wasabi scratches vertically on the cat trees, and Ginger prefers to scratch horizontally.)
Wasabi is determined to kill our robot vacuum. Here is one of her first vacuum rides. She jumps on all the time now. She also blocks it from docking.