For us, FP+ couldn't make our park experience any worse than it did. When a band around your wrist controls your every move, with little flexibility, it's time to hang up the Mickey Ears. SB lines are absurd. Pre-planning and having less ability to adjust on the fly is probably our biggest disappointment. Disney has kicked the regulars to the curb in favor of those first timers who don't know any better. It's not just FP+ (although the most glaring proof), but the body of work over the past 5-10 years shows just that.
As a business model, works perfectly for Disney, I can't really blame them. It's just so far removed from what Walt was striving for, IMO.
We took a year off from Disney this year. Instead, we rented our 2014 points and went to a 4-star, all-inclusive in Playa del Carmen for 10-days. Final cost came in less than what we usually spend at Disney... And what an awesome time! Upon returning home (relaxed!), we have decided to sell one of our DVC contracts. We'll give it one more shot to reclaim some of the Disney Magic in September.... But We'll make a decision soon thereafter if we'll sell our other DVC contract and vacation elsewhere.