I do agree with Tom Briker who wrote that their ticket policy is going to backfire. They're hugely limiting access to the new park at a time when tourism in Central Florida is slowing down. People get excited, then discover they cannot book as many days as they want (not wasting a lot of money) and may decide to delay a visit until next year. And if they realize they're way below expectations and scramble last minute selling single day tickets... how many families plan visits to Orlando last minute?
Honestly, I'm already invested visiting this year for other reasons (family trip, mostly at Disney) and I'll be back in a couple of years anyway, but if this would be a once in a lifetime trip, I would wait next year, without a doubt.