Citrus cheesecake

This afternoon we are heading the park for a pizza picnic in celebration of my mother-in-law's birthday.  I offered to make a birthday cake and she selected this recipe.  Unfortunately the local IGA didn't stock the CSR Smart Sugar blend so I substituted with caster sugar.  Hopefully it still tastes okay.  I was a little concerned with my oven, it's not fan forced and cooking cakes can be unreliable.  Especially when you are trying to slow cook something at a moderate temperature.  But I am really pleased with how it has turned out.  Aesthetically at least, the taste verdict will need to wait until later in the day.