The annexe was perfect for our purpose of visiting family nearby.
If you want a peaceful and quiet location rather than a busy hotel this is the place. The sofa bed was surprisingly comfortable, my only slight issue was the window at the back which had an obscure panel in the middle but was plain around the sides looking onto the back garden. There are no other properties looking into the garden, but did feel quite exposed dressing/undressing
Gina was very prompt with communication and also very helpful and we will stay again next time we’re in London