I've used it on leased pasture just simply for convenience of being able to haul and spread with the pickup in one trip.
It works well. Just slower. You have to get rain of course before anything happens. I'm somewhat skeptical of the effect of the 24d. Supposed to be foliar right???.
It has its place in the toolbox. But I would spray in most cases.
We've used it and had pretty good results , I think the cost is comparable, for us at least , we have to rent a sprayer . We do have some rough ground where we get better control with a sprayer , but on the hayfield it's the bomb.