i read someone's review that said the cake tasted okay with the mayo. i felt it ruined the taste. you can really taste it and smell it through the cinnamon. i'm not a big mayo fan anyway but for a dessert, the mayo was not a good idea. otherwise the cake was good. to make it even lower in fat i used one cup of egg whites instead of 4 eggs. it still came out cake-like and moist, not heavy at all. i topped it will a thin layer of cream cheese frosting. thank goodness for that. it killed the mayo taste a bit.