I like it from a laziness perspective. I always have a pils base due to availability, thus 90 minute boils. With FWH, I have lots if free time for mash tun cleaning and a meal before I need to pay attention for hop additions.
I haven't noticed or looked for a bittering or flavor difference, but that was never my motivation. But I due tend to FWH with a variety used in later additions or which complements them.