Love that you can convert the measurements to preferred units (such as metric).

I second Bruce's comment about cup sizes being regional. So are teaspoons and tablespoons for that matter. The wikipedia pages do reasonable coverage on this.

So good to clearly indicate which region's measurements are being used.

Always been a frustration of mine when reading recipes as having to figure out what country the recipe is published in to figure out what the measurements actually are. (Unless they are in metric, which is unambiguous.)