What a shame that a completely strange review (see Jim's review below) can significantly harm a small business' Yelp score. I wonder if he owns the Cold Stone in Brooklyn. Anyway...
In case you've never been to Menchies, here is how it works... They have several different frozen yogurt flavors. They have a huge list of flavors that they rotate, so you don't know what they will have each time (though they consistently have staples like chocolate). They also have a HUGE selection of toppings and a limited selection of pre-packaged froyo. If you don't like self-serve frozen yogurt, Menchies isn't for you.
This particular Menchies is my favorite location. The staff is friendly, the store is clean, and there is a large outdoor area where you can enjoy your yogurt. The other ones I frequent have very few tables compared to this one. The customers at this location are even pretty well-behaved... mostly teenagers and families.