Somehow Waterstreet is the only casual eatery in the warehouse district. Every other place to eat is either bar food or an upscale, and thus pricy, restaurant which makes it a critical element of downtown living.
I've done breakfast, lunch amd dinner each there a few times. Waterstreet is without a doubt the preferred choice for a hangover breakfast for anyone who lives within walking distance. Saturday and Sunday for brunch this place is pretty full of glazed-eyed 20 somethings who are there b/c they read their text messages from the night before and realized they had drunkenly promised 5 of their friends to do brunch at waterstreet the next morning
Katelyn B is right that the spinach and artichoke dip is really good. Some of the salads I've had were good, as is the gnocchi, all of the breakfast wraps, the mussels and some of the pastas.
For dinner it's a good segue into going out as the beer is pretty cheap (3 for domestics and 4 for imports). A drawback is that they don't have anything on tap.