My standard for FROYO is Pinkberry (being from LA) so it's hard to find a place that exactly matches the same taste & consistency.
I sampled the original which was a little ICY for my personal taste. They have several self-serve yogurt flavors and a bevy of toppings. It's pretty cheap I believe about $0.35 p/ounce.
The inside decor is really cute : bright red colored walls with clear colored chairs.
You have to ask the counter gals for sample cups which are really HUGE.