Minou Trixie Den
I bought one of these specifically hoping that Maddie, one of my frail elderly girls, would take to it; thinking it would probably take a couple of days for her to "trust it enough" I just put it down under the radiator beds and next to her basket, and didn't think any more of it.
Less than 5 minutes had elapsed when I went back into the dining room to find that she had already climbed in, curled up and just had her little face peeking through the aperture. She has commandeered it completely, no-body else is allowed to use it, and she insists on her food being placed right in front of it so she doesn't have to "leave it vacant".
I am now buying another one, as Tibbie, one of my very elderly boys, is showing a great interest in it, which is getting on Maddie's nerves.
Well worth buying - I recommend it. If your furry isn't too sure, just spray a bit of catnip into it.