I LOVE Sweet Frog!
There are a ton of different flavors so don't be afraid to take your time and ask for sample cups (Salted Caramel... YUM!). There are so many toppings that it's borderline ridiculous. You can make your frozen yogurt a healthy, fruity treat or you can load it up with cheesecake bites, chocolate chips, graham cracker crumbs, brownies, etc. and not be judged. They have plenty of indoor seating and outdoor seating.
Staff is just "blah", they weren't super nice or rude- just there. But they do a wonderful job of keeping everything clean and fresh.