I've tried a few fruity flavors over the years that might have great reviews, but to me, they are really bitter. 
I know that with fresh cilantro used in a salsa, that too much will make it taste like soap to some people, and other folks think it is wonderful. I fall into the "soap" group when it comes to cilantro, and wondered if there are some flavorings that will be nectar of the gods
to some and soap to others. 
I'm getting prepared to learn DIY whether I want to or not, and if there are some flavors to avoid, I would like to know sooner than later. The ones that I seem to have problems with are cherry, pomegranate, raspberry. I've found a couple of pre-made berries that were tasty to me, so I think it might depend somewhat on the source of the flavor and not the flavor itself.

I know that with fresh cilantro used in a salsa, that too much will make it taste like soap to some people, and other folks think it is wonderful. I fall into the "soap" group when it comes to cilantro, and wondered if there are some flavorings that will be nectar of the gods

I'm getting prepared to learn DIY whether I want to or not, and if there are some flavors to avoid, I would like to know sooner than later. The ones that I seem to have problems with are cherry, pomegranate, raspberry. I've found a couple of pre-made berries that were tasty to me, so I think it might depend somewhat on the source of the flavor and not the flavor itself.