I couldn't imagine where the book would end up, but I really liked the way the resolution was handled. There is some suspension of belief required, but mostly I was just caught up in what was happening, wondering how it would end. I really liked Isla as a character, and her group of friends are fun and interesting. The relationship Isla has with her younger sister is sweet too, and I enjoyed seeing the family dealing with this enormous futuristic event. I enjoyed watching what happens with new Flora, and the development of her character. Everyone feels very real, and I found it easy to imagine their house on the island as it's really well written. It's an emotional story, and heartwarming too. I thoroughly enjoyed it.
Another story about dealing with grief that you might like to read is [[My Brother's Shadow by Tom Avery]] and for a different robot story try [[Robot Girl by Malorie Blackman]].