We have eaten there about 3 years ago, and I thought it was pretty unimpressive. My brother and his wife used to love it prior to the Disney Springs transformation, mainly because of the giant margaritas. It was really loud and the food was forgettable. Since all the other restaurants have opened in DS, Paradiso 37 is at the bottom of the list IMO.
I agree with Justin. I might be a bit less dismissive but I cannot recommend it. It's more or less fine; there is just nothing special about it for either atmosphere or food. My experience also is from about 3 years ago, though I have not heard of any major changes since.