I don't regularly read these forums but just made it through this thread and was surprised at the negativity. I, for one, am excited to try FP+...and here's why.
My last trip to WDW was a 10-day trip with my family (wife, 3 daughters 7, 4, 2) as well as 5 other members of the extended family (including a first timer). I was the trip planner and was tasked with coming up with the touring plan. I know the parks like the back of my hands (former CM) but we only visit approx 1x every 2 years (we're Northwesterners).
My single biggest frustration planning and executing the trip was that I ran out of mornings! I planned out the days and (especially with young kids) found our entire plan revolved around the mornings. There were a number things that to minimize lines we either had to get FPs for first thing in the AM (TSM, Soarin', Everest, TT, the "mountains," etc) along with the non-FP things that are best done in the AMs (meet characters, Dumbo (old one), safari, etc). That's not to mention the water parks (get there early!) and the joys of dealing with different ages (dumbo for 2 year old, Space for the 6 year old). Oh, and the 2 year old was going back for naps mid-day.
I literally planned the entire trip around mornings...and despite 10 days still missed some things! This was due to not having enough mornings (we, for example, never saw Rapunzel...too many morning priorities and we were not going to wait an hour later in the day) and the challenges of children...we were tracking to our TSM morning until we had the emergency potty stop, the spilled chocolate milk at breakfast, and the trip/skinned knee on the way to the Studios. We got to the Studios 45 min late which meant TSM stand-by was too long, our FPs were for nap time, and the 6 year old's rides on ToT and RnRC were later than planned.
I was exhausted from being the "runner," the family was split up a lot (I know we're standing here to ride attraction X, but the 4 of us have FPs for Y so we'll meet you later...can't let them expire!), not to mention the one time I forgot to give the "nap team" their tickets back (I was the runner) and we then had to plan on meeting back at the gate later to give tickets back.
All that to say, I would KILL to know I could guarantee my kids that they could do some of their favorite things at more convenient times without me running around trying to organize FPs...and if we're running late, I could make changes on my phone. To be honest, I'll easily trade a little more standby waiting if it meant the entire trip was not planned around FP collections in the mornings (and the ability to sleep in a bit)! But that's just me...and I haven't tried it yet.
I know this is heresy, but we just got back from 5 days at DL/DCA last month. If I knew we had pre-determined, guaranteed times to ride RSRs...sold! I had some exhausted kiddos two of the mornings that we had DCA early entry and we had to get up, dressed, breakfast, etc just to ride without waiting an hour!
All that to say, can't wait to give it a try! Stepping off my lonely soapbox...let the hate continue...