Short of seafood markets in major cities (Sydney, Tokyo, San Fran etc.), Joe Patti's had one of the nicest arrays of raw fish and seafood for purchase. I appreciated the rack of free recipe brochures for folks less acquainted with the varieties of fish they sell. They sell local as well as imported fish.
A sushi chef made rolls to order in the back (I didn't try) and a shop sells spices and such for cooking seafood as well as great, freshly baked bread, desserts, soup, seafood spreads, sandwiches,etc. Their key lime pie was lovely, as was the clam chowder and multigrain bread I purchased. The prepared food was inexpensive ($1.69 for a baguette, 1.75 for a small soup).
However, there isn't a proper restaurant. There were a few tables in the sushi area and a few outside, but it's a loud, working environment. I recommend getting food to go and eating at one of the nearby waterfront parks downtown.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.