The Coventry location is my favorite! The atmosphere is definitely is more "hipster-like" but it fits with the area. They have rotating flavors, but my top choice is the organic vanilla bean. You can't go wrong and it goes with almost any of the toppings.
Let me just say that they have such fun toppings ranging from your normal sprinkles, fresh fruit, and cookie dough to rainbow mochi and cheese cake bites. Though the place isn't expensive, I always manage to build my froyo goodness to something comparable to a quart of ice cream at the grocery store. Nevertheless, just watch the portions of the toppings that you add if you don't want to pay too much! Cute date night suggestion. They also have props in the back to take pictures with.