Now, if only my home had a bunch of ceiling tiles instead of... you know, standard drywall ceilings.
It definitely can make things easier if you would otherwise have to fish a wall, but going up and down walls is easy - like a joke easy, almost always. Just a piece of fish tape and you are done inside of a couple of minutes most of the time. The hard part is ceilings and getting across joists.
In a soffit with an open cavity, it can still be tough to get down because there is a support about every 18" you have to get across, which gets tougher as you get further out and a fish stick starts to droop and become uncontrollable.... This product does absolutely nothing for the tough installs like that.
Insulated residential walls may be better use for it, but I can't see using this in any commercial space as those walls are phenomenally easy to fish. As well, there is typically a steel stud right at the top - at the ceiling grid, not at the concrete slab above. So, when you lift the tiles you see the top of the studs, not a piece of drywall within the plenum space.
I've seen similar product before, and I still haven't had much use for something like this other than making the very occassional pull just a bit quicker.