Very tasty! I like lots of orange flavor, so I substituted 1 tsp orange extract for 1 tsp of the vanilla. The cake was just a little on the dry side, so next time I think I'll leave out that last 1/4 cup of flour, or add a little extra orange juice. The whipped cream frosting was perfect: I added a few drops orange extract to that, too, and used 4 drops of red and 12 drops of yellow for the coloring. I also stabilized the whipped cream with a little gelatin so it wouldn't deflate at a friend's birthday party. These were a huge hit!