The GFS hasn't performed all that bad with Florence, but I'm not sure I buy what's on the 6z GFS. It wants to take the remnants out to sea, pinch them off of a larger system headed to the UK, then bring them south into the middle of the Atlantic then into the Bahamas and Cuba. Peak intensity doesn't seem to be more than barely a tropical storm, but we're 4 days out from that. I know Ivan did something like this back in 2004, but it stayed closer to the coast.
Florence has been officially declared dissipated by NHC/WPC. The lifespan of the storm ran from August 31st to September 18th, an impressive length of time right there.
I fully expect the name Florence to be retired after the season. She's currently sitting at between $17 and $21 billion in damage with 21 fatalities and that number will likely climb as flooded areas become reachable again.