I think it does depend upon your family situation. We tend to get to Disney World in the early afternoon (driving) and always go out into the parks. In fact, one of my favorite feelings is finally (after a year of waiting or whatever) getting inside a park the afternoon of arrival. It is easy for us now as my kids are middle/high school aged, but even when much younger, everyone was too excited to rest. However, we always referred to it as a bonus time in the park, as if the planned park time did not start until the next day. I am not sure why, but that made it seem like anything we did was extra, without that nagging thought that your time in the parks was limited. There are many things I do not like about FP+ compared to the old system, but I will say that this is one of the great things about FP+. If you know you are going far enough in advance, you can guarantee that you can get on some of your favorite rides that evening.