I'm still sat in the restaurant but I just have to share my experience before I forget the details..
I can't fault this place. We had the shack stack which is a mixed platter of brown crab, oysters, razor clams, scallops, mussels and prawns. I wasn't sure about the crab as I'm usually not a fan, but it was really good! Reasonably priced bottle of nice prosecco, friendly staff and good ambience. It's a bit quirky with lobster creels (or whatever they're called), fish nets and old sea food signs and it all adds to the lovely atmosphere. If I ever come back to Falmouth this will be my first stop. In fact, I might even come back tomorrow!
Perfect for a romantic dinner or family outing alike. Well done guys!