Cawy Materva Yerba Mate Soda

I really like yerba mate, so I was really excited to try this. It fell way short of my expectations.
When I opened it, it smelled strangely like pineapple. To be clear, there is no pineapple in it. Then I realized it just tastes like a sweet pop, with a slight hint of tea.
It got worse, then better, then worse again as I kept drinking it. Not what I wanted out of this at all.