I'm sure they're easy to cross perpendicularly, but riding longitudinally with them and getting your tire into a crack could end very badly. If you have to go through an intersection where streetcars turn and the tracks snake all over, it would be hard to ensure you're always crossing them perpendicularly.
Do you ride on those streets, or somewhere more bike-friendly? (I suppose a fat tire bike might have no problem with those road features, and such bikes are getting more popular with cyclists who commute through the winter).