It is rated to stand up to 1,000 hours of continuous salt spray without any failure of any kind and that's pretty much equal to galvanizing. It is much harder than galvanizing and resists denting and scratching better. It provides a smooth finish as opposed to the slightly rough finish found in hot-dipped galvanizers. It comes in colours. The availability of this coating in small lots and for small parts and for small orders is orders of magnitude above that for galvanizers.
Pricing is also attractive.
You can also have custom colours from a huge rainbow. If you are not in a hurry and want a standard colour, you can leave it with them and wait until they have other processors with whom to share the set-up charge. Worthwhile doing a little clean-up on old parts, but new fabrications should be no problem. Any metal can be coated, even galvanized, but the finish on the powder-coated galvanized parts will not be as good as clean metal parts. I plan to powder-coat all TOAD's iron work in white.