I have julius's for both of mine, mainly cos if one has a new gadget, so does the other. However, the reason I actually bought them is my mum is decrepit and wanted to walk, even just down the road, so the harnesses were purchased as the one dog is epileptic and should anything happen whilst walking (She start fitting) then mum said even she could manage to pull her off the road with the top handle. Each time been to the vets, they said they have liked the harness as I have customised the labels!!! (It wasn't me, on one side and I didn't do it, On the other as for both dogs, it really does suit them!) I didn't fork out for the chest plates, but I have since, for both of them, the plates with the rings. Both harnesses are the IDC model. I use them as car harnesses as well, not the original idea, but it works. There is quite a bit of give with them as the epileptic dog is 37.4kg Rottweiler x collie and when she has to go in the car with it On and it's hot, it's firm but loose enough for either her big cooling blanket to go underneath or any of her cool coats. I agree, they are expensive but when I got mine i managed to pay between £25 and £30 each as they were on offer at Zooplus. The one thing i do regret is that you can't add rings and I have since learnt that you can buy various variations of this harness with extra rings so you do need to Google and decide what works for you.