The ad is fairly accurate. There were (when I stayed) 3 rooms available, all occupied, so it's a good chance to meet with other people from outside of London. The place is dog friendly so it's likely that she'll be okay if you bring a dog. There were a few minor things I didn't like, like the bathtub only has a half door so if you don't stay perfectly under the faucet then water gets everywhere. One of the dogs she was babysitting for the first few days I was there was incredibly annoying, performing something I could only describe as high-pitched crying whenever Jo wasn't home. Because there are 2 other rooms available there is the potential for meeting other non-Londoners, which can be nice if you're just looking to meet other people.