I guess I'm one of the last people to learn about the whole self serve frozen yogurt craze. Basically you grab yourself a tub, fill it with whatever flavours you want, then slather with with the massive array of toppings they have on offer (either healthy fruity type things or not healthy candy/chocolate, etc.)
You pay by weight so the more you load up the more you pay. I found the Yogurt pretty tasty.
I would strongly recommend you ask the cashier for a free sample cup, you can they go around and sample every single flavour. The machine spits out a pretty big blob of yogurt so you can half full just sampling the many different flavours they have :)
The interiors are all very new and funky looking. There's usually either a lot of children running around or teenagers hanging out.