We were there in July. They do allow family members. They just ask them to stand behind the wheelchairs. I don’t know if there is a party size limit or not. It actually wasn’t very crowded at all in the area when we went, but I’m sure it varies. If you’re going at a time when there are two Fantasmic showings, you can always do the second showing if the first one fills up before you get there. It does certainly save money, and while the view is far to the side, it’s still good! If you plan on seeing the fireworks right afterwards from the Fantasmic viewing area, though, unfortunately in the standby wheelchair area,, you can’t see the projection and fireworks at the same time, and fireworks are blocked by trees. Have a great trip!!