After sampling the "premium" flavor at the Berry Good location in Peoria, I walked out w/o purchasing anything because it was not tart. I asked the worker if they planned on carrying tart flavors and she said they tried it a few weeks before, but it didn't sell well.. so no.
Fast forward a few months later (last weekend) and I'm visiting my friend in Avondale. She tells me about Berry Good in Goodyear and convinces me that theirs is tart and it's self-serve (Peoria's wasn't when I visited). Excited to get some tart fro-yo, we drive over there and I rush to sample the "premium" and the "strawberry banana" that she had been raving about. ICK it was cloyingly too sweet. Once again, I leave empty handed and disappointed.
I really hope Berry Good makes their plain actually tart.. especially because they're opening up a new location right by my house. PLEASE OH PLEASE MAKE IT TART! I will be a loyal customer if you do!