I'm kind of on the side of those who find Tiana's Place a bit of a miss.
It's obvious why they put it there and it is how it is as a retrofit of an existing restaurant. Anyone thinking they were going to step into the Tiana's Place of the movie, though, would be pretty disappointed when they saw the reality. If the whole point of IP integration is to allow people to step into the world of the movies, I wish they had of either built something that looks more like the restaurant from the film or put a different spin on this restaurant. This looks a little bit like what would have happened if Chef Skinner from Ratatouille took over the restaurant and started franchising it after Tiana passed away.