I'll further add to this (I am the other half of the "we" that Pug mentions). When I initially called the restaurant to make our reservation for early January it was November. They told me to call back after the new year. We figured that they didn't tend to take many reservations and we'd just make the reservation the day we wanted to eat there. We were right. We showed up a half hour early for our reservation (on marathon weekend!) and one person short and they still knew that it was us when we mentioned that we had a reservation. We must have been the only one anywhere near
that time to bother with a reservation.
We walked up and were seated immediately in December (party of 3). If there is someplace else you're thinking of trying, you may want to try that. IMO, Paradiso 37 wasn't very good and was quite pricey for less than mediocre food.
I know it's getting mixed reviews, but we have wanted to try it. The July trip is just my older daughter and me which is why we wanted to try it this time. My younger daughter really doesn't like the Tex/Mex thing at all and can't find much of anything on the menu she is interested in. I think we'll give it a go knowing it may be a bust.
I don't understand the bad reviews. I have been several times and the food is great, probably the most flavorful of the bunch. And news to everyone in case you haven't noticed, Disney food is very expensive, regardless where you go.