What I love about Off The Hook is their staff (and their fishy products!)... Its generally the same faces and they remember you - even if it's been more than a month since you walked in. They may even remember what you ordered last.
They are great for giving advice on preparation and storage. The crab cakes I took home were delicious. I have brought home at least three fish from here and its always fresh and cleaned before your eyes.
They have a pretty good selection and are a little bit pricier than if you go to the competition (e.g. H-Mart). But I get a sense I can really trust their product and know where it's coming from.