I love this Zoyo. My fiance and I have already redeemed 3 loyalty cards- so I guess you could say we've been there a lot. I've only gone in the evening/at night and it's always been busy. Not to the point of being irritating or annoying; I've never had to wait, but if I wanted to eat it there I wouldn't be able to because the few tables they have are full. Not a problem, because I like to eat my treats at home on my own sweet couch.
The flavors are changed out regularly and I've had a chance to taste many of them. Only complaint is that, just as often as the yogurt changes are made it seems that they also make subtle changes to the topping selection. I have been missing the kit-kats and reese's crumbles lately and sometimes the fruits are not exciting- but that's just personal taste. I sent my fiance there one night to bring something back for me and the only peanut butter cups they had were some hard, knock-off kind. I am a chocoholic and a picky one at that, so I didn't like that they didn't have my favorites available, but such is life. Overall I am always able to put together something yummy and new, and I have found the price to be the same or similar per ounce as other yogurt vendors in town. The interior is very minimalist but I don't go there to look at artwork or watch TV so it really doesn't bug me- I go for the Yo'!
Before Zoyo opened, the TCBY across the street was our yogurt place. Sadly, they will likely close their doors for business soon as I do not see how they can compete (unless the ice-cream cake market starts to get some attention!) I'd even say the prices are better at Zoyo then they are at TCBY- we spend on average $10 for two of us when we go and that's because my fiance is a heavy-hitter with the toppings; when we used to go to TCBY it was usually like $12.