Its actually a pretty hardy piece of kit TBH.
If you fit it exactly as per the video it works great.
I had problems at first but I now recommend them. It hasn't stopped the joined couplings from getting hooked up on the corner of wall etc, but they do stop the hose connectors from getting damaged when coiling the pole hose up before putting back in the van.
Far superior to the Procecta balls we were using.