It's a classy addition.
We walked around the whole park and I could see a fair amount of smaller kids having a good time with the rides and play areas but there was really nothing that would appeal to the bigger kids or teens. Adults by themselves might enjoy the Miniland area and the gardens for a bit but it is not a whole day park at all.
Add in the hour drive from Orlando (it is not 45 minutes no matter what they say as the traffic backs up along SR 27)and the regular theme park crowd might go once but that's about it. I think they will have to market it carefully around here to appeal to the grandparents with visiting young families. The day ticket price of $70 adults and $59 kids is also a bit high and I heard some grumbling from people walking in about that.
The parking situation also needs to be better organized. We were quite a ways out and as there were no row numbers painted on the ground like the other parks have, it was confusing trying to find our car at the end of the day. I hope they address that before opening day.