I rather suspect that while the descriptions of what those two people saw might be a bit different, I really do not think they would be all that different. Let's make the object in question a large dog -- say a St. Bernard. I doubt that person A would come back and say, "I saw a birthday balloon" and person B wouldn't report having seen a flying monkey just like in the Wizard of Oz.
We may experience the world slightly differently, because our experiences are filtered through the organs senses, and modified to our own internal set of notions and experiences. But that DOES NOT MEAN that the world isn't really there. You experience the world because you are part of the world. You can interact with it, and it with you. Even though, as you said earlier, if you zoom in closely you may find that there's "nothing there," that is not the case. There's lots there -- the forces that act at the sub-atomic level are very real and measurable, and they do very predictable things that can be beautifully described with mathematics. And that's why you can't walk through walls, and why the truck on the highway will run you down and kill you if you stand there. Because it's real, and so are you!