I've signed up for their emails and always come with a coupon that takes anywhere from 15-30% off the meals! I love sweet tomatoes cause it's slightly healthier than the standard all you can eat since you can take advantage of all the great dishes they have on their salad bar including their Caesar salad/chicken wonton happiness salad, Joan's broccoli salad, and there's a medley of vegetables/toppings/dressings if you want to make your own salad! They also have about 8 soup options everyday as well as a host of Focaccia breads, pastas, muffins/corn bread, and a sweet potato/baked potato bar as well.
This location has a touch screen soda fountain as well which is pretty nifty. And you can end every meal with some frozen yogurt (chocolate, vanilla, or mixed). This is my goto when in craving some greens!