I forgot to mention this amazing contraption for anyone else adopting I can't rate it highly enough.
Our little one is 20 months and she loves it. Not only that but it settles her down in a most amazing way and I can do things with her on it without hurting my back. We load the dishwasher together, we collect things from round the house, we make cakes and my back doesn't hurt at all. My arms do a bit! It's not as restrictive as a sling so she retains her toddler independence. She loves it, she shouts "seat!" when she sees it and she cries "'elping" as we do things together.
It's a godsend!