we are travelling to NZ via SanFran with our nearly 4yo & 2yo - 2 flighs of approx 11-13 hours each. Have read various reviews (good and bad!) of the CARES 5 point harness and wondered if anyone has used one? If so are they good/worth the money (RRP is approx £80!) and did it keep your LO in their seat and happier than just sitting with the lap belt? I've done longhaul with our DD when she was 18months but she's a lot calmer than DS who doesn't do sitting still except in his car seat! Any comments/thoughts on the CARES harness gratefully received!