I've been to a similar concept store in Wheaton. This place seems pricey (some $0.47 per ounce), like that one, but the sheer amount of flavors and toppings is overwhelming compared to other stores like it.
I had a lactose-free mango frozen yogurt, and some pomegranate-based yogurt. Both were very good, and I had no complaints about them. There were many other flavors available, including the oddly-named "European tang".
The toppings included yogurt chips, mochi (!!!), a brownie, very fresh fruit (yes, the mango was ripe) and more. The store design is very bright, very pastel and very smart.
I might just be back here tomorrow if I'm craving more frozen yogurt. Hopefully I can try some of the more chocolately or crunchy toppings next time.