I agree with you that it's amazingly yummy! But. . .the agave nectar is definitely a sugar, and there are many who would say it's just as bad as sugar, fructose, etc. There are some coconut ice cream recipes online, and I'm going to try making one with Stevia rather than any other sweetener and see how it goes.
As always, you have to take a look at how it affects YOU and see if it's worth it. My problem is, I can eat the whole pint at one sitting!