I've been to dozens of froyo places, and Berryism has got to be the least tart tart frozen yogurt that I've ever had. The original was a little tart, and I sampled the wildberry and green tea flavors, which were barely tart at all. I think that if you're gonna go tart, you should go all out! I can't really complain though; I was just happy there was even a tart froyo place in Tampa at all. I was impressed by the fact that they had mochi balls though, plus a ton of fresh fruit.
One of the guy who works there is super fierce and awesome, the ambiance is nice, it's spacious, they have their own parking lot and free wi-fi, and they're pretty much the only place that serves semi-tart froyo in Tampa right now. They've even got a "happy hour" every day where they serve a medium cup of froyo with two toppings or a smoothie for $2.95.
Am I going to hell for hoping that the tart froyo craze hits Tampa soon? Because I sure hope it does!