After no responses and some digging, we ended up having a late lunch at Gunnings. The place was packed at 2:30 on a Saturday. I really wanted a crab fix and they did a great job, although I got the sense you would want to stick with basics.
We got some starters which were ok. Tempura fried peppers sprinkled with powdered sugar would have been greatly improved by a pepper with a little heat (they used a green bell pepper). Old Bay fries were nothing special, with Old Bay on the side of plain fries and Heinz malt vinegar in a bottle. Crab soup was tasty, but so thick I was able to eat it with a fork. I would skip starters next time and go straight for crab.
Mains were fantastic. Great crabcake sandwich. I ordered the sandwich because it was less expensive than other cake options and just ditched the bread. Moist chunks of sweet crab with very little filler and a nice Old Bay spice. Soft Shell crab was tender and sweet. Hard shell's were cooked perfectly and spiced up nicely. Fun to crack and eat with our kids.
I would definitely recommend Gunnings for a crab fix.