Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What Stravecchio Grana Padano is like

For those who have not had this excellent cheese, it may be helpful to compare Stravecchio Oro del Tempo, Grana Padano, which is relatively obscure outside of Italy, with cheeses that English-speakers may have had the good fortune to try. It is a hard aged cheese, in my opinion more like Regiano Parmesan than anything made in North America. It has sort of crystalline fracture lines in it, and is quite tangy, which makes it offset fruit nicely, but as it is hard as well as tangy, it does beautifully in place of more ordinary grating cheeses such as Romano or Parmesan. Some very old cheddars are a little bit like that, but North American cheddars are never this hard and grainy. It has bursting hard crystals of lactic acid and milk sugars.