A Healthier Lemon Almond Cake?

I could not resist the idea of using olive olive instead of butter in my almond cake. I suppose it is healthier i.e. if all those articles about the benefits of olive oil is true.

Here's the recipe I followed: http://www.sassyradish.com/archives/2009/02/olive_oil_almond_cake.html

Modifications made: I have used only vanilla extract and glazed it with a simple mixture of lemon juice and sugar.