Great product, friendly service, convenient location, huge selection of toppings that are displayed nicely. This place is a winner.
My only little piece of constructive criticism is about the frequent customer card. While it is awesome that they even offer it in the first place, the maximum value of your free 10th item is only $3.00. It would be nice if the value was more near the amount most customers spend on a typical visit. I find that my usual yogurt creation is in the $4.50-$5 range, and I'm thinking that's actually even lower than most people. I feel bad even bringing this up, because anything for free is better than nothing for free, but I think it is worth mentioning so some people aren't surprised when they fail to read the fine print before redeeming.
Edit: I just received a very nice message from someone at Zoyo letting me know that the $3.00 maximum is just there for their protection and so people don't take advantage of the promotion. According to them, everyone has received their 10th yogurt for free so far, no matter what the weight has been. Good to know! I definitely appreciate the personal attention to my review. (And no, they didn't ask me to edit my review, which is exactly why I am doing it!)