natural sugar substitutes

I tried stevia after reading about how wonderful it tasted. It was suppose to taste just like sugar. It doesn't. I ending up throwing it out. It was kind of expensive, too, I think around $7 or $8 for a box. I just couldn't stand the way it tasted. In hindsight, I should've returned it for a refund.

My fiance was diabetic and we used a sweetener that was made from aguave cactus. It was sold at Whole Foods.