We tried the medianoche, guava pastry, cortadito and empanadas ... they were good, good, good and very good, respectively.
Their selection of pastry was limited. I still think Roly's is worth trying because of the good service, cleanliness , and decent taste of food. We will be going back to try some more from their menu.
My reason for 3 stars - frankly, the best Cuban pastry&sandwich I've tried was in So Cal, Glendale at Porto's bakery and that has been my standard to beat. They have some of the best Cuban pastry&sandwich (at least from the places I've tried).
Until I find something better than Roly's in Las Vegas, I guess this place will do.