If you forget about the money the CNW headsteady excels the Dave Taylor headsteady: same design but much stronger and self lubricating joints (disadvantage very expensive!).
I have the CNW head steady for over a year now. I had a Dave Taylor with spring prior to that.
Yes, the CNW built more robust. However, it does not have the spring, don't know why not as supporting the head would seem in theory to be a good idea. For whatever reason, the CNW does not.
Now, how does the Dave Taylor and CNW head steadies compare, other than the CNW being more than double the cost of the DTHS?
In my view, about the same. In fact, I honestly could not tell them apart if a blind test.
Also, given that I had the DTHS for six years with no issues, I can't say if it matters that the CNW appears to be built "better", as in thicker metal pieces.
If I had to do it over again, I would have just kept the DTHS with the spring and not bothered with the CNW.