Yeah, it's funny, even the pro FP+ now ONLY talk about the MK. Because, it is the ONLY park that was not completely screwed up. AK still flounders with low crowds, with really only 2 rides that ever have a line. Epcot and Studios have their tiers that only make visiting them attractive to folks with 7 day park hoppers. And MK is rationing rides on any busy day.
Could you imagine paying full price, or even $80 or so, for a day at Studios or Epcot now? Knowing you would get ONE of the big rides, and have to be there at RD to ride the other without a long wait. And then that is IT, the rest of the day will be SB.
The only park you can even argue that FP+ has improved is MK, and that is purely a matter of opinion.
And I've yet to hear a single person say they would visit MORE because of FP+, but many, including myself, are staying far away from WDW now. Orlando is a Universal town, and I'll visit WDW for one day max from now on. Either using party tickets, or my existing old park tickets.
Jason