I've only tried the yogurt here, so can't comment about the other menu items (though I've been tempted to try).
Yogurt is good enough - tart, the way I like it, and tasty. However seems like they are skimping on the toppings you receive. 2 or 3 years ago, I remember them being generous with toppings but lately...not so much.
Service is okay - not rude, nor overly friendly. Although it seems like they're in a rush to ring up your order and get you out of there.
Unfortunately I like the yogurt here better than their nearby competitors like Tutti Bella, so I'm willing to put up with the small topping amount and forgettable service.