The most important thing to remember about the "Just Add Ice" orchids are to make sure you are not putting the ice directly on any part of the plant such as a root or leaf.
I have a colleague who has several and does the ice method with surprising results.

That said, I personally believe good old fashion watering is best and this is what I do. I'm just not convinced

Furthermore, the orchids themselves are just regular phal mericlones from across the Pacific so the "Just Add Ice" part is nothing more than a marketing gimmick.